Question

Write the equation of the line (in slope-intercept form) that passes through the points (1, 6) and (2, 8).

Answer 1

y = 2x + 4

Explanation:

Figure out the slope.

y2 - y1 / x2 - x1 8 - 6/ 2 - 1 = 2

Find out the y-intercept. Your equation so far is y = 2x + b.

8 = 2(2) + b

8 = 4 + b

4 = b