Question

Which of the equations, when graphed, will contain the ordered pair (1,1)? (Select all that apply) A. y = -2x² + 3 B. y = x - 2 C. y = x D. y = x²

Answer 1

A , C and D

Explanation:

to determine which graph will contain the point (1, 1 )

substitute x = 1 into the right side and if the value of y = 1

then the point (1, 1 ) will lie on the graph

A

y = - 2(1)² + 3 = - 2(1) + 3 = - 2 + 3 = 1 ← lies on graph

B

y = 1 - 2 = - 1 ≠ 1 ← not on graph

C

y = 1 ← lies on graph

D

y = 1² = 1 ← lies on graph

the point (1, 1 ) will lie on the graphs of A, C and D