If you knew that the vertical intercept for a straight line was 150 and that the slope of the line was 4, then the dependent variable would be 250 when the value of the independent variable is
A) 15.
B) 20.
C) 25.
D) 30.

Question

Quizplus · Accepted Answer

We can use the slope-intercept form of a straight line equation to solve this problem, which is:

y = mx + b

where y is the dependent variable, x is the independent variable, m is the slope, and b is the vertical intercept.

Plugging in the given values, we have:

y = 4x + 150

To find the value of x when y is 250, we can simply substitute these values and solve for x:

250 = 4x + 150

Subtracting 150 from both sides, we get:

100 = 4x

Dividing by 4, we get:

x = 25

Therefore, the best choice is C, as the dependent variable would be 250 when the independent variable is 25.

If You Knew That the Vertical Intercept for a Straight