9.06] Fill in the missing term so that the quadratic equation has a graph that opens up, with a vertex of
(– 2, – 16), and x intercepts at x = -6 and x = 2. (Do not include the negative sign in your answer.)
y = x2 + 4x − ___
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OpenStudy (anonymous):
@felicia123 help on this qustion?
OpenStudy (anonymous):
yes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
OpenStudy (anonymous):
Help
OpenStudy (anonymous):
hahaha, ur lively today
ok, so are you stuck at where or how to start?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
just tell how you get the answer
OpenStudy (anonymous):
you are given an equation:
y = x2 + 4x − ___
you need to find whats missing
_____
you are also given x and y, so
plug in x and y into the equation, and solve for what ___ should be.
OpenStudy (anonymous):
is it 8
OpenStudy (anonymous):
show me what numbers you used for x and y when you plugged it into the equation
OpenStudy (anonymous):
2 and 4 just tell me answer so i can go eat
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OpenStudy (anonymous):
2x4 = 8
OpenStudy (anonymous):
(y) = (x)^2 + 4(x) − _?_
then use the point (-2, -16)
every where you see a y, put in the -16 number, every where you see an x, plug in a -2 value.
now solve for '?'