Question

Write an equation of the line that passes through the point (8, 1) with slope 5.

Answer 1

y = 5x - 39

Explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 5, hence

y = 5x + c ← is the partial equation

To find c substitute (8, 1) into the partial equation

1 = 40 + c ⇒ c = 1 - 40 = - 39

y = 5x - 39 ← equation of line