Will give brainliest -determine whether each table or rule represents an exponential function. explain why or why not- 11.y=12*x^2 13.y=7x+3 -evaluate each function for the given value- 15.g(t)=2*0.4^t for t=-2 17.h(w)=-0.5*4^w for w=18

Hello!

for 11 we can put in values 
x = 0

y = 12 * 0^2

y=0
One point is (0,0)

x=1

y=12*1^2

y=12
Another point is (1,12)

x=-1

y = 12 * -1^2

y=12

A third point is (-1,12)

This tells us that this is not exponential since an exponential function as a steep curve on one side not two.

You can think of an exponential function as a half parabola if it helps.

13. We can plug in numbers again here.

x=0

y=7(0)+3

y=3 
So the first point is (0,3)

x=1

y=7(1)+3

y=10

The second point is (1,10)

x=-1

y=7(-1)+3

y=-4

so the third point is (-1,-4)

This shows that the graph is not exponential it is linear since it goes in a straight line.

15. We just plug in -2 for t so

g(-2) = 2*0.4^-2

0.4^2 is 0.16 * 2 is 0.32 which is the answer

17. We can put 18 for w

h(18) = -0.5*4^18

This is where there is a issue because 4^18 is a extremely small number (6.9 * in scientific notation-

But we can multiply that by -0.5 to get
-3.4 *
which I believe is -0.000000034

Hope this helps!