Answer:
45
Step-by-step explanation:
(7-4)=3
3^2=9
9*5=45
Answer:
y = -3/2x + 3
Step-by-step explanation:
y = -3/2x + 3
Let's solve this by using the quadratic formula:

Note that we only use the coefficients so a=12, b=-14, and c=-6.
Plug values in the quadratic equation:

And so by evaluating those values we obtain:

Now we have two answers which are our factors one where we add another where we subtract and so:
First factor:

Second Factor:

And so your factors are

meaning that those are your roots/x-intercepts.
F(5) is like X is 5
you just do this
f(5)=-2x+1
=-2(5)+1
=-10+1
= -9
:D