Question

Maricella plots two ordered pairs on the grid below.

On a coordinate plane, points are at (6, 2) and (8, 6).
The line segment is extended to cross both axes. What is the location of the y-intercept on the line?
(0, –22)
(0, –10)
(0, –5)
(0, 5)

Answer 1

Slope = (6−2)/(8−6) = 4/2 = 2.
Using point (6,2): y − 2 = 2(x − 6) → y = 2x − 10.
Y-intercept is (0, −10).