Question

Which equation represents the graph? points: (0,4) (3,4)

a. x=4
b. x=4y
c. y=3
d. y=4

Answer 1

D

Explanation:

A) Incorrect. x = 4 means that all points on the line must have x coordinate equal to 4. Neither points satisfy this.

B) Incorrect. We can rewrite the equation to be y=x/4. If we calculate the slope between the two points we get a slope of 0, not 1/4.

C) Incorrect. If y = 3, all points must have y coordinate equal to 3. Neither points satisfy this.

D) Correct. If y = 4, all points must have y coordinate equal to 4. Both points satisfy this.