What are the solutions of the system?

y = x^2 + 4.6x + 4.7
y = 3.3x - 3.7

A. (–3.47, 3.48) and (2.17, –15.17)

B. (–3.47, –15.17) and (–2.17, –10.88)

C. (–3.47, –15.17) and (2.17, 3.48)

D. no solution

Question

What are the solutions of the system?

y = x^2 + 4.6x + 4.7
y = 3.3x - 3.7



A. (–3.47, 3.48) and (2.17, –15.17)  
 
 B. (–3.47, –15.17) and (–2.17, –10.88)  
 
 C. (–3.47, –15.17) and (2.17, 3.48)  
 
 D. no solution

zzr0ck3r · Answer

you can solve or plug each value in and check

anonymous · Answer

If we set them equal (y=y)
We get this:
 x^2 + 4.6x + 4.7= 3.3x - 3.7
Now we can substract 3.3x both sides
x^2+1.3x+4.7=-3.7
Now we add 3.7 both sides:
x^2+1.3x+8.4=0
There we can use the quadratic formula.
Remember it?