Question

Question 1:

Which ordered pairs are a solution to the equation y=2x+6

Select all that apply

(0,6)
(-1,4)
(-1,-4)
(3,12)


Question 2:
Which ordered pairs are a solution to the equation y=4-2x

Select all that apply

(-1,2)
(0,4)
(-1,6)
(1,6)

Answer 1

1.

(0,6)

(-1,6)

(3,12)

2.

(0,4)

(-1,6)

Explanation:

The rule for the first question is y = 2x + 6

We can substitute the numbers for each equation.

6 = 2(0) + 6

6 = 6

So (0,6) is correct.

4 = 2(-1) + 6

4 = 4

So (-1,4) is correct as well.

-4 = 2(-1) + 6

-4 ≠ 4

(-1,-4) is incorrect.

12 = 2(3) + 6

12 = 12

So this answer is correct as well.

The second question‘s rule is that y = 4 - 2x. So we can substitute the numbers.

2 = 4 - 2(-1)

2 ≠ 6

This is incorrect.

4 = 4 - 2(0)

4 = 4

This answer is correct.

6 = 4 - 2(-1)

6 = 6

This answer is correct as well.

6 = 4 - 2(1)

6 ≠ 2

This answer is incorrect as well.