Determine whether the function is an exponential function. 1) -2x A) No B) Yes 2) 4-x...

Question

Question

Determine whether the function is an exponential function. 1) -2x A) No B) Yes 2) 4-x A) Yes B) No 7 A) Yes B) No

math algebra

Answer 1

Answer #1

1) -2^x is a exponential function as it exists for all x and y real values

Yes

2) 4^-x

is a exponential function as it exists for all x and y real values

Yes

3) ( - sqrt(7) )^x is not an exponential function

as at x = 1/2 (- sqrt(7)^1/2 .It is not real anymore

So, ( - sqrt(7) )^x is not an exponetial function

No

Answer 2

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