Respuesta :
Answer:
A
Step-by-step 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
[tex]y=ab^{2}[/tex].
If our equation is [tex]f(x)=2^x[/tex], 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.
[tex]y=2*2^{x}[/tex] this is A.
Answer:
A
Step-by-step explanation:
i took the test so i hope this helps :}