Question

Which equation could produce all the values shown in the table?

A
y=−2x
B
y=2x2−3
C
y=8x+1
D
y=x2+1

Answer 1

Substituting the 3 values of x and y we see that the correct equation is
y = x^2 + 1

for example (-1)^2 + 1 = 2 = y
(2)^2 + 1 = 5 = 5

Its D

Answer 2

The answer is D.y=x2+1.