SOLUTION: What is the vertex of the graph y = x^2 + 4x - 12 ? I've completely spaced out how to set this problem up! I'm so confused, please help! I've been racking m

SOLUTION: What is the vertex of the graph y = x^2 + 4x - 12 ? I've completely spaced out how to set this problem up! I'm so confused, please help! I've been racking m

Algebra.Com

Question 142237: What is the vertex of the graph
y = x^2 + 4x - 12 ?

I've completely spaced out how to set this problem up!
I'm so confused, please help!
I've been racking my brain for the last 20 minutes over this problem!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
the vertex is on the axis of symmetry __ the equation is x=-b/2a

x=-4/(2*1) __ x=-2

substituting __ y=(-2)^2+4(-2)-12 __ y=-16

vertex is (-2,-16)
RELATED QUESTIONS
Find the probability that the vertex of the graph y=x^2-8x+c is above the x-axis if the c (answered by ewatrrr)

I must solve the system of equations by graphing. x-y=-2 x+y=12 I cancelled out the (answered by Alan3354)

I really would like someone to show me how to graph this problem: {y < = -x+6 x-2y > = (answered by solver91311)

I have tried to figure out how to properly graph this problem however, when I looked at... (answered by Fombitz,algebrapro18)

The problem asks to find the vertex and graph the following quadratic function. y=-x+6x (answered by scott8148,solver91311)

I can't seem to solve this problem that should be easy. I'm blocked and need to figure... (answered by vleith)

I have a math question with two parts. I am trying to work through the problem but am so (answered by stanbon)

Please help me! I am stuck and don't know if I'm doing this right and it's due... (answered by jim_thompson5910)

I have been struggling with a word problem. The problem is "Best rentals charges a daily (answered by math_tutor2020,ikleyn,josgarithmetic,MathTherapy)