Question

8. Which is a solution of the equation y = 2x + 5? (1 point)

5,20

6,12

3,11

4,14.

I need this really quickly. Thanks to anyone willing to help.

Answer 1

3,11

Explanation:

Since y = 2x + 5, if you chose (x,y) (3,11):

11 = 2*3 + 5

11 = 6 + 5

11 = 11

Answer 2

(3, 11 ) is a solution

Explanation:

substitute the x- coordinate of the points into the equation and if the value of y obtained equals the y- coordinate then the point is a solution.

(5, 20 )

y = 2(5) + 5 = 10 + 5 = 15 ≠ 20 ← not a solution

(6, 12 )

y = 2(6) + 5 = 12 + 5 = 17 ≠ 12 ← not a solution

(3, 11 )

y = 2(3) + 5 = 6 + 5 = 11 ← solution

(4, 14 )

y = 2(4) + 5 = 8 + 5 = 13 ≠ 14 ← not a solution