Question

Does (1, 3) make the equation y = 2x - -1 true?

A. Yes
B. No

Answer 1

Answer: yes they are the same

Explanation:

y = 2x - -1

3 = 2(1) - -1

3 = 2 - -1

3 = 2 + 1 ( 2 negatives equal 1 positive)

3 = 3

Answer 2

A. Yes

Explanation:

(x,y) -> (1,3)

y=2x-(-1)

y=2(1)-(-1)

y=2-(-1) -(-) = + (two negatives make a positive)

y=2+1

y=3