Convert to rectangular coordinates.
A. 
B. 
C. 
D. 
Answer: A
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Decide whether the graph of the equation opens up, down, to the left, or to the right; and whether it is wider, narrower, or the same shape as the graph of 
(or 
).x = -8y2 - 4y + 2
A. To the left; wider B. To the left; narrower C. To the right; wider D. To the right; narrower
Sketch the graph of the quadratic function. Identify the vertex and axis of symmetry.f(x) = (x - 5)2 + 2
A. vertex (-5, 2)
axis of symmetry: x = -5
B. vertex (2, 5)
axis of symmetry: x = 2
C. vertex (5, 2)
axis of symmetry: x = 5
D. vertex (-2, -5 )
axis of symmetry: x = -2
Evaluate the expression using the given values.x + 8y
x = -2, y = -3
A. 6 B. -26 C. -5 D. -19
Solve the problem.Several of Dan's friends decided to equally share the 
cost of a set of cookware for a wedding gift for Dan and his fiance, Jen. However, before the wedding, 2 more of Dan's friends joined the others in giving the couple the cookware. This lowered the contribution of each person by 
. How many friends originally agreed to share the cost of the cookware?
A. 7 friends B. 6 friends C. 8 friends D. 5 friends