Write y−9=−6(x−3)

in slope-intercept form.

13 answers

To convert the equation \( y - 9 = -6(x - 3) \) into slope-intercept form (which is \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept), we can follow these steps:

  1. Start with the given equation: \[ y - 9 = -6(x - 3) \]

  2. Distribute the \(-6\) on the right side: \[ y - 9 = -6x + 18 \]

  3. Add \( 9 \) to both sides to isolate \( y \): \[ y = -6x + 18 + 9 \]

  4. Combine the constant terms: \[ y = -6x + 27 \]

So, the equation in slope-intercept form is: \[ y = -6x + 27 \]

where did 18 come from

Let's break down the distribution step in the equation \( y - 9 = -6(x - 3) \) to clarify how we obtained the \( 18 \).

When we distribute \(-6\) to both terms inside the parentheses \((x - 3)\), here's what happens:

  1. Distributing \(-6\) to \(x\): \[ -6 \cdot x = -6x \]

  2. Distributing \(-6\) to \(-3\): \[ -6 \cdot (-3) = +18 \]

Combining these, we get: \[ -6(x - 3) = -6x + 18 \]

That's how \(18\) comes from distributing \(-6\) to \(-3\).

The equation simplifies as follows:

  1. Starting with: \[ y - 9 = -6(x - 3) \]
  2. Distributing gives: \[ y - 9 = -6x + 18 \]
  3. Then adding \(9\) to both sides results in: \[ y = -6x + 27 \]

I hope that clarifies it! If you have any more questions, feel free to ask!

no when -6 was distributed there was an 18, where did it come from. explain

I apologize for any confusion earlier. Let's clarify the distribution step in detail to eliminate any doubts about where the \(18\) comes from.

Starting from the original equation:

\[ y - 9 = -6(x - 3) \]

When we distribute \(-6\) across the terms inside the parentheses \((x - 3)\), we need to apply multiplication to both terms:

  1. The first term is \(x\): \[ -6 \cdot x = -6x \]

  2. The second term is \(-3\): \[ -6 \cdot (-3) = 18 \]

Now, let's write that out step by step:

  • We take the \(-6\) and apply it to both \(x\) and \(-3\): \[ -6 \cdot (x - 3) = -6 \cdot x + -6 \cdot (-3) \] This simplifies to: \[ -6x + 18 \]

So, when we say \( -6 \) distributes to \(-3\), keep in mind that multiplying two negative numbers gives a positive result, thus:

  • \(-6\) times \(-3\) equals \(+18\).

Putting it all together, after distributing, we have:

\[ y - 9 = -6x + 18 \]

If we add \(9\) to both sides to solve for \(y\):

\[ y = -6x + 18 + 9 \]

\[ y = -6x + 27 \]

So the final equation in slope-intercept form is:

\[ y = -6x + 27 \]

Thank you for pointing that out! If you have further questions, feel free to ask.

Write −1/2y+5=−10x
in slope-intercept form.

To write the equation \( -\frac{1}{2}y + 5 = -10x \) in slope-intercept form (which is \( y = mx + b \)), follow these steps:

  1. Start with the given equation: \[ -\frac{1}{2}y + 5 = -10x \]

  2. First, isolate the term with \( y \) by subtracting \( 5 \) from both sides: \[ -\frac{1}{2}y = -10x - 5 \]

  3. To eliminate the fraction, multiply every term by \(-2\) (which is the reciprocal of \(-\frac{1}{2}\)): \[ y = (-2)(-10x) + (-2)(-5) \] Simplifying this gives: \[ y = 20x + 10 \]

Now the equation is in slope-intercept form, where:

  • The slope (\( m \)) is \( 20 \), and
  • The y-intercept (\( b \)) is \( 10 \).

Thus, the final equation in slope-intercept form is: \[ y = 20x + 10 \]

Transform the linear equation −2y=14−6x to slope-intercept form.

To transform the equation \( -2y = 14 - 6x \) into slope-intercept form (which is \( y = mx + b \)), we can follow these steps:

  1. Start with the original equation: \[ -2y = 14 - 6x \]

  2. First, we want to isolate \( y \). To do this, divide every term by \(-2\): \[ y = \frac{14}{-2} - \frac{6x}{-2} \]

  3. Simplifying each term gives: \[ y = -7 + 3x \]

  4. Rearranging it into the standard slope-intercept form (\( y = mx + b \)): \[ y = 3x - 7 \]

Now the equation is in slope-intercept form, where:

  • The slope (\( m \)) is \( 3 \), and
  • The y-intercept (\( b \)) is \(-7\).

Thus, the final equation in slope-intercept form is: \[ y = 3x - 7 \]

Write 0.4x+0.2y=0.6
in slope-intercept form.(1 point)

To write the equation \( 0.4x + 0.2y = 0.6 \) in slope-intercept form (which is \( y = mx + b \)), follow these steps:

  1. Start with the original equation: \[ 0.4x + 0.2y = 0.6 \]

  2. To isolate \( y \), first subtract \( 0.4x \) from both sides: \[ 0.2y = 0.6 - 0.4x \]

  3. Next, divide every term by \( 0.2 \) to solve for \( y \): \[ y = \frac{0.6}{0.2} - \frac{0.4x}{0.2} \]

  4. Simplify each term: \[ y = 3 - 2x \]

  5. Rearranging it to put \( x \) first gives: \[ y = -2x + 3 \]

Now we have the equation in slope-intercept form. Thus, the final equation is:

\[ y = -2x + 3 \]

Here, the slope (\( m \)) is \(-2\) and the y-intercept (\( b \)) is \(3\).

Write the linear equation 3y=6x−18
in slope-intercept form.(1 point)
What is the slope and the y
-intercept of the equation 9+27/2x=−3/2y
alt="An illustration shows a coordinate plane with four quadrants. The x and y axes range from negative 10 to 10 in one unit increments. A downward slanting line is graphed on the coordinate plane. The downward slanting line passes through closed points plotted at left parenthesis 0 comma 10 right parenthesis and left parenthesis 1 comma 7 right parenthesis. "
Annie has created a graph of 3x+y=10
on the coordinate plane. Did Annie create her graph correctly?

Option 1: No; Annie's y
-intercept is correct but her slope is incorrect.

Option 2: No; Annie's slope is correct but her y
-intercept is incorrect.

Option 3: Yes; Annie's graph is correct.

Enter "1" for Option 1, "2" for Option 2, or "3" for Option 3.

(1 point)

Let's tackle each part of your request step by step.

Part 1: Convert \(3y = 6x - 18\) to slope-intercept form

  1. Start with the equation: \[ 3y = 6x - 18 \]
  2. Divide every term by \(3\) to solve for \(y\): \[ y = \frac{6}{3}x - \frac{18}{3} \]
  3. Simplifying gives: \[ y = 2x - 6 \]

Conclusion: The equation in slope-intercept form is \(y = 2x - 6\).

  • Slope (m): \(2\)
  • y-intercept (b): \(-6\)

Part 2: Find the slope and y-intercept of \(9 + \frac{27}{2}x = -\frac{3}{2}y\)

  1. Start with the equation: \[ 9 + \frac{27}{2}x = -\frac{3}{2}y \]
  2. To isolate \(y\), first rearrange the equation: \[ -\frac{3}{2}y = \frac{27}{2}x + 9 \]
  3. Multiply every term by \(-\frac{2}{3}\) (the reciprocal of \(-\frac{3}{2}\)): \[ y = -\frac{2}{3} \left(\frac{27}{2}x + 9\right) \]
  4. Distributing gives: \[ y = -\frac{2}{3} \cdot \frac{27}{2}x - \frac{2}{3} \cdot 9 \] Simplifying each term:
    • For the first term: \(-\frac{2}{3} \cdot \frac{27}{2} = -9\)
    • For the second term: \(-\frac{2}{3} \cdot 9 = -6\)

So the slope-intercept form is: \[ y = -9x - 6 \]

  • Slope (m): \(-9\)
  • y-intercept (b): \(-6\)

Part 3: Evaluate Annie's graph of \(3x + y = 10\)

  1. Start with the equation: \[ 3x + y = 10 \]
  2. Rearranging to slope-intercept form: \[ y = -3x + 10 \]

From this form:

  • Slope (m): \(-3\)
  • y-intercept (b): \(10\)

Based on the problem statements:

  • If Annie's graph shows a slope of \(-3\) and a y-intercept of \(10\), then her graph is correct.
  • If not, it would depend on what she plotted.

So, based on your question, if Annie's graph accurately reflects these values:

Conclusion: If Annie represented both correctly:

  • Enter "3" for Option 3 (Yes; Annie's graph is correct).

If the graph does not align with these values, choose accordingly between options 1 or 2.

Final Answers:

  1. For the first part: \(y = 2x - 6\) (Slope: \(2\), y-intercept: \(-6\)).
  2. For the second part: Slope is \(-9\), y-intercept is \(-6\).
  3. For Annie's graph: Enter "3" for Option 3 (assuming everything is correct).
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