Question

Which point is on the equation y = 2x + 3?

(1, 4)


(2, 5)


(3, 9)


(4, 10)

Answer 1

The answer is (3,9) because it starts at x=3

Answer 2

y =2x + 3
Just start plugging in the ordered pairs until you get one that is true.

4 ?=? 2(1) + 3
4 ?=? 5 FALSE

5 ?=? 2(2) + 3
5 ?=? 7 FALSE

9 ?=? 2(3) + 3
9 ?=? 9 TRUE (3,9) is the answer