Provide the proper response.If the product of the slopes of two lines is -1, what do we know about the lines?
What will be an ideal response?
They are perpendicular.
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A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.P = 2L + 2W; P = 20, W = 4
A. L = 6 B. L = 10 C. L = 16 D. L = 8
Solve the problem.Find an equation of a parabola that contains the points (1, 4), (2, 7), and (4, 25).
A. y = - 
x2 + 
x - 2
B. y = x2 - 6x + 17
C. y = 2x2 - 3x + 5
D. y = 2x2 - 4x + 5
Use transformations to graph the function.y = -3 sin (x + 
)
A. 
B. 
C. 
D. 
Solve the problem.During the first five months of the year, Len earned commissions of $3980, $2430, $2450, $2450, and $2370. If Len must have average monthly earnings of at least $2620 in order to qualify for retirement benefits, what must he earn in the sixth month in order to qualify for benefits?
A. at least $2040 B. at least $2736 C. at least $2620 D. at least $2716