Posted by Anonymous on Sunday, December 16, 2012 at 8:47pm.
y=(x-3)^2-2
or
y=+1(x-3)^2-2 vs y = a(x-p)^2 + q
since a=1 , a> 0 , so it opens upwards
y=intercept, let x = 0
y = (-3)^2 - 2 = 7
x-intercept, let y = 0
(x-3)^2 - 2 = 0
(x-3)^2 = 2
x-3 = ± √2
x = 3 ± √2
"points of the vertex " ????
the vertex IS a point, it does not have points, it has coordinates
they are (3,-2) , (from (p,q) )
For D) just pick any suitable values for x, evaluate the corresponding y's and plot.
(pick values of x immediately above and below +3 )
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