Answer:
2
Step-by-step explanation:
From the graph, we obtain the trigonometric function as:

The corresponding cosine function have equation.

This function is of the form: 
where
is the amplitude.
Therefore the amplitude is |2|=2
The third choice is correct
The numbers can be 5.25 and 26.25
Answer:
C
Step-by-step explanation:
f(x) = 2ˣ + 1
-f(x) = -(2ˣ) − 1
First, let's find the y-intercept.
-f(0) = -(2⁰) − 1 = -2
Only C can be correct.
Answer:
don't worry I'm on my way step bro ! where'd you get stuck ?! (;
She will solve 20 problems in 2.5 hours, 4*5 thirty minute sessions=20.