Question

Line GH passes through points (2, 5) and (6, 9). Which equation represents line GH?

y = x + 3
y = x – 3
y = 3x + 3
y = 3x – 3

Answer 1

y = x + 3

Explanation:

y = mx + b

m = slope = (difference in y)/(difference in x)

m = (9 - 5)/(6 - 2) = 4/4 = 1

y = x + b

5 = 2 + b

b = 3

y = x + 3