Y=2x^2+16x+31 graph from standard form
1 answer:
Standard form: y = ax² + bx + c
vertex ( -b/2a , y)
this equation;
a = 2
b = 16
c = 31
so the x-coordinate of the vertex is ...
= -16/2(2)
= -16/4
= -4
Use the x-coordiante to find the vertex y-ccordinate
y = 2(-4)² + 16(-4) + 31
y = 32 - 64 + 31
y = -1
Vertex is (-4, -1)
do a rough sketch of the graph using the location of the vertex. "a" is positive so the parabola is right-side up.
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if you have trouble still
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Step-by-step explanation:
1/2X+4=X-4
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(Pick one of the equations )
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Answer:
Step-by-step explanation:
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Step-by-step explanation:
so all you have to do is subtract the 12 from the -24. to get -36.
leaving you with this:
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then all you do is divide the 6x from the -36, to get -6.