Provide the proper response.For the graph of y = 
x2, in what direction does the parabola open if c > 0?
A. downward
B. to the right
C. to the left
D. upward
Answer: D
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Match the given equation with one of the graphs.y2 - 4x2 = 4
A. 
B. 
C. 
D. 
Suppose that y is directly proportional to x. Use the given information to find the constant of proportionality k. Then use y = kx to find y for the given value of x.y = 39 when x = 6;
Find y given x = 12.
A. k = 6.5; y = 78
B. k = 6.5; y = 90
C. k = 234; y = 
D. k = 6.25; y = 75
Provide an appropriate response.Cyndi bought a multimedia home computer system for $4500 and agreed to pay off the loan by making monthly payments of $109. If the store charges an interest rate of 9.7% compounded monthly, how many months will it take to pay off the debt?
Fill in the blank(s) with the appropriate word(s).
Write an equation in slope-intercept form for the line shown.
A. y = 
x + 3
B. y = 4x - 3
C. y = 4x + 3
D. y = 
x - 3