Question a-line

1.1 Linear Functions - Slope calculation and interpretation
0:00

A line in the xy-plane has a slope of 9 and passes through the point 0,-5. The equation y = p x + r defines the line, where p and r are constants. What is the value of p ?

Enter your answer:

A line in the xy -plane has a slope of 9 and passes through the point

Hard-difficulty · SAT Math · Linear Functions — Slope calculation and interpretation. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

The correct answer is 9 . It’s given that the equation y=px+r defines the line. In this equation, p represents the slope of the line and r represents the y-coordinate of the y-intercept of the line. It’s given that the line has a slope of 9 . Therefore, the value of p is 9 .