Question

A line passes through the point (7,9) and has a slope of 2.

Write an equation in slope-intercept form for this line.

Answer 1

Answer: y = 2x - 5

Explanation:

slope- intercept form is always written as y = mx + b, where m = slope, and b is the y-intercept.

To find b, substitute the point and the slope into the equations, you will get:

y = mx + b

9 = 2(7) + b

9 = 14 + b

-5 = b

Plug in m and b into the equation, we get:

y = mx + b

y = 2x + (-5)

y = 2x - 5