Find the equation of the quadratic function with zeros -14 and -10 and a vertex at (-12, -12)

A y = -3x2 − 72x − 420

B y = x2 + 24x + 140

C y = 3x2 − 72x + 420

D y = 3x2 + 72x + 420

Question

Find the equation of the quadratic function with zeros -14 and -10 and a vertex at (-12, -12)
		
A y = -3x2 − 72x − 420
		
B y = x2 + 24x + 140
		
C y = 3x2 − 72x + 420
		
D y = 3x2 + 72x + 420

anonymous · Answer

@chemENGINEER

anonymous · Answer

@chemENGINEER I'm doing my work and I'ma call it B

anonymous · Answer

@Jusaquikie can you check my answer?

anonymous · Answer

@precal can you check if B correct for me?

precal · Answer

do you have a graphing calculator?

anonymous · Answer

No

precal · Answer

https://www.desmos.com/calculator

precal · Answer

|dw:1354928299280:dw|should look like this

precal · Answer

did you find it

anonymous · Answer

I'm guessing C or A cause I can't tell graph to be honest, @precal

anonymous · Answer

@ktnguyen1 what do you think?

precal · Answer

|dw:1354928639401:dw|lets verify the vertex by using the vertex formula