Write equation of a line that goes through points (-2, 3) and (-1, 5).

Question

Write equation of a line that goes through points (-2, 3) and (-1, 5).

Answer 1

An equation of the line is y = mx + b, where m is the slope. m = (5 - 3) / (-1 - (-2)) = 2.

So, y = 2x + b.

Since the point (-1, 5) lies on the line, 5 = 2(-1) + b. So, b = 7.

Equation of line: y = 2x + 7.