Answer:
so b=-9 while c=12.
Step-by-step explanation:
If you have x-intercepts 1 and -4, then that means f(1)=0 and f(-4)=0.
You are given
So you have the system of equations to solve:
Evaluating the exponents:
Doing a little bit of multiplying:
Let's add 3 on both sides of equation 1 and 48 on both sides of equation 2:
Subtracting the equations will eliminate c.
Let's do that:
Divide both sides by 5:
Simplify:
If b=-9 and b+c=3 then -9+c=3 implies c=9+3=12.
so b=-9 while c=12.