Answer:
-10, 40, or 5
Step-by-step explanation:
There are three ways of looking at this problem.
1.
h(x) = -x^(2) + 3x
When finding h(5), that is like saying that in the case that x = 5, find the value of the given expression,
using that knowledge, we can say
h(5) = -(5)^(2) + 3(5)
simplify
= - (25) + (15)
= -10
2.
h(x) = (-x)^(2) + 3x
Again,
When finding h(5), that is like saying that in the case that x = 5, find the value of the given expression,
using that knowledge, we can say
h(5) = (-5)^(2) + 3(5)
simplify
=25 + 15
= 40
3.
h(x) = -2x + 3x
Again,
When finding h(5), that is like saying that in the case that x = 5, find the value of the given expression,
using that knowledge, we can say
h(5) = -2(5) + 3(5)
simplify
= -10 + 15
= 5
