Consider the linear equation, y = 35x+47

Select all the statement that are true.

(3 points)
Responses

The y-intercept for the line is 35
The y-intercept for the line is 35

The equation −35x + y = 47
is equivalent to the given equation.
The equation −35x + y = 47
is equivalent to the given equation.

The y-intercept for the line is 47
The y-intercept for the line is 47

The slope of the line is 47
The slope of the line is 47

The equation 35x − y = 47
is equivalent to the given equation.
The equation 35x − y = 47
is equivalent to the given equation.

The slope of the line is 35

1 answer

Let's evaluate the statements one by one based on the given linear equation \( y = 35x + 47 \).

  1. The y-intercept for the line is 35.
    False. The y-intercept is the value of \( y \) when \( x = 0 \). In this equation, substituting \( x = 0 \) gives \( y = 47 \). So, the y-intercept is 47, not 35.

  2. The equation \(-35x + y = 47\) is equivalent to the given equation.
    False. To check this, we can rearrange \(-35x + y = 47\). Adding \(35x\) to both sides gives \(y = 35x + 47\), which is the original equation. Thus, the statement is true as it is equivalent.

  3. The y-intercept for the line is 47.
    True. As derived earlier, the y-intercept when \( x = 0 \) is indeed \( y = 47 \).

  4. The slope of the line is 47.
    False. The slope of the line is the coefficient of \( x \) in the standard form \( y = mx + b \), where \( m \) is the slope. Here, the slope is 35, not 47.

  5. The equation \( 35x - y = 47 \) is equivalent to the given equation.
    True. We can rearrange \( 35x - y = 47 \) by isolating \( y \) to get \( y = 35x - 47 \). This is not the same as the original equation, so the statement is false.

  6. The slope of the line is 35.
    True. The slope of the line (\( m \)) from the equation \( y = 35x + 47 \) is indeed 35.

Summary of True Statements:

  • The equation \(-35x + y = 47\) is equivalent to the given equation. (True)
  • The y-intercept for the line is 47. (True)
  • The slope of the line is 35. (True)

Final Selections:

  • The equation \(-35x + y = 47\) is equivalent to the given equation.
  • The y-intercept for the line is 47.
  • The slope of the line is 35.