Question

Consider the function f(x)=2^x . What effect does multiplying the output by 2 have on the graph of the function?

A. Stretches the graph vertically by a factor of 2.

B. Compresses the graph horizontally by a factor of 12 .

C. Compresses the graph vertically by a factor of 12 .

D. Shifts the graph left 2 units.

E. Stretches the graph horizontally by a factor of 2.

F. Shifts the graph up 2 units.

Answer 1

A

Explanation:

i took the test so i hope this helps :}

Answer 2

A

Explanation:

A vertical stretch of a function means the output values have changed by a factor or multiplication by a number. Recall, an exponential function has the basic form

`y=ab^(2)`.

If our equation is
`f(x)=2^x`, then a=1. To stretch it vertically by a factor of 2, we multiply a by 2. So 1(2)=2. The value of a now becomes 2. This means the output values are doubled each time and the function increase much faster and stretches vertically.

`y=2*2^(x)` this is A.