I’m not really good at maths and I also don’t understand the question but just check it out
Answer: B, E
Step-by-step explanation:
Answer:
B. 4
Step-by-step explanation:
The given function is of the form:

A is called the amplitude of the given function.
We can read from the graph that, the function ranges between:
-4 and 4
This implies that:

Therefore the amplitude of the function is 4.
Hence the value of A must be 4.
Answer:
Explanation:
f ( −
3
) basically means substitute −
3 for x in the function −
5
x
f
(
−
3
)
=
−
5
(
−
3
)
−
7
f
(
−
3
)
=
15
−
7
f
(
−
3
)
=8
Step-by-step explanation: