Question

Which of the points shown below are on the line given by the equation y=x+4? check all that apply.

point a: (-1,3)
point b: (2,6)
point c: (-2,-2)
point d: (2,4)

Answer 1

Explanation:

These points are in (X, Y) form. What you want to do is plug in the X coordinates into the equation and see if it equals the Y coordinate.

Equation: Y = X + 4

Point A: (-1, 3)

(-1) + 4 = 3

Point B: (2, 6)

(2) + 4 = 6

Point C: (-2, -2)

(-2) + 4 = 2

Point D: (2, 4)

(2) + 4 = 6

Only point A and point B equal their Y coordinate, making A and B the only correct answers.