A) Solve y=f(x) for x.
This instruction just means to manipulate the equation so that x is all by itself on one side. We can use a mixture of addition/subtraction and multiplication/division to do this with any equation.
f(x)=-3x+7
y=-3x+7
y-7=-3x
(y-7)/-3=x
b) Find the input to f(x) when the output is -8.
This means that it wants us to find the x value that provides a y value of -8. To solve this, we just need to plug -8 in for y and solve for x.
y=-3x+7
-8=-3x+7
-15=-3x
x=5
There are an infinite number of those, so it's not possible to list them all.
If you'll settle for a list of all the <em>natural numbers</em>, or all the <em>integers
</em>in that range, those are:
2
3
4
5
6
7
8
9
Answer:
-114
Step-by-step explanation:
The answer to the problem is 17
A= 2c + 3b/2 is your answer I believe