Question

Tell whether the table represents an exponential function. Either way, write the rule for the function .

X Y
-1 -11
0 -7
1 -3
2 1

Answer 1

Its not exponential
Note that each new Y values is obtained by adding 4 to previous Y value

Answer 2

It is not an exponential function.
The function is linear.
y = 4x - 7
y = 4(-1) - 7
y = -11

y = 4(0) - 7
y = -7

y = 4(1) - 7
y = -3

y = 4(2) - 7
y = 1