8. Change the equation from standard form to slope-intercept form by solving for y. 8x−4y=24 Determine who changed the equation correctly: Bob: Subtract 8x from both sides: −4y=−8x+24 Divide by -4 on both sides: y=2x−6 Bill: Subtract 8x from both sides: −4y=16x Divide by -4 on both sides: y=−4x Bud: Subtract 8x from both sides: −4y=−8x+24 Divide by -4 on both sides: y=2x+24 (1 point) Responses None of them are correct None of them are correct Bob Bob Bud Bud Bill

3 answers

Let's solve the equation \(8x - 4y = 24\) for \(y\) correctly to see who, if anyone, has the right solution.

Starting with the equation: \[ 8x - 4y = 24 \]

Step 1: Subtract \(8x\) from both sides: \[ -4y = -8x + 24 \]

Step 2: Divide each term by \(-4\): \[ y = \frac{-8x}{-4} + \frac{24}{-4} \] \[ y = 2x - 6 \]

So the correct slope-intercept form of the equation is: \[ y = 2x - 6 \]

Now, let's evaluate each person's work:

  • Bob: \(y = 2x - 6\) (Correct)
  • Bill: \(y = -4x\) (Incorrect)
  • Bud: \(y = 2x + 24\) (Incorrect)

Thus, Bob is the only one who changed the equation correctly.

Final Answer: Bob

9. Solve 3x+2b=6c for x. Step 1: 3x+2b−2b=6c−2b subtract 2b from both sides Step 2: 3x=6c−2b combine like terms/simplify Step 3: 3x/3=6c/3−2b divide by 3 on both sides to get x isolated Step 4: x=2c−2b simplify/final answer Which statement is TRUE?

Let's go through the steps outlined to solve the equation \(3x + 2b = 6c\) for \(x\) and verify the calculations:

Step 1: Start from the original equation: \[ 3x + 2b = 6c \] Subtract \(2b\) from both sides: \[ 3x = 6c - 2b \] (This is correct.)

Step 2: The equation now is: \[ 3x = 6c - 2b \] This is already simplified, so we can move to the next step.

Step 3: Divide both sides by 3 to isolate \(x\): \[ x = \frac{6c - 2b}{3} \] This can be further simplified as: \[ x = 2c - \frac{2b}{3} \] or alternatively, you can factor it: \[ x = 2c - \frac{2}{3}b \]

Step 4: The above analysis shows that the correct form of \(x\) is: \[ x = \frac{6c - 2b}{3} \] or simplifying: \[ x = 2c - \frac{2}{3}b \]

Now, let's review what was provided in the above steps:

  • The final answer given in the question was \(x = 2c - 2b\), which is incorrect.

The statements include a simplification error as \(2c - 2b\) ends up not being equivalent to the correct derivation.

Given these points:

  • The correct simplified form is \(x = 2c - \frac{2}{3}b\).
  • The statement provided that \(x = 2c - 2b\) is incorrect.

Thus, the true statement considering the entire process is that the final form given in the question about \(x\) is not accurate.

Final Answer: The statement in the steps that claims \(x = 2c - 2b\) is incorrect. The correct solution should be \(x = 2c - \frac{2}{3}b\).