Question 199002
y=2(x-4)^2-2 
a. sketch the graph
Vertex at (4,-2)and opening up.
{{{graph(400,300,-10,10,-10,10,2(x-4)^2-2)}}}

b. Label the intercepts and vertex 
x-intercepts: 
Let y = 0, then 2(x-4)^2 = 2
(x-4)^2 = 1
x^2 - 8x + 16 = 1
x^2 - 8x + 15 = 0
(x-3)(x-5) = 0
x = 3 or x = 5
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y-intercept
Let x = 0, then y = 2(-4)^2 -2 = 30
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c. Give exact values and show your work
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Cheers,
Stan H.