Question

Write an equation of the line that passes through the point (8, 1) with slope 5. A. y−8=−5(x−1) B. y−1=5(x−8) C. y−1=−5(x−8) D. y−8=5(x−1)

Answer 1

These linear equations are in the form a(x + b) + c. a determines the slope of the line and increasing b moves the line left along the x axis. Increasing c will move the line up. First, isolate y.

A. y = -5(x-1)+8

B. y = 5(x-8)+1

C. y = -5(x-8)+1

D. y = 5(x-1)+8

Now, you can see the a(x + b) + c. You want the one where a = 5, b = -8 and c = 1. The equation will be y = 5(x - 8) + 1.

The answer is B