Simplify.
A. 28y(y + 4)
B. 
C. 
D. 
Answer: C
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Calculate the slope of the line passing through the given points. If the slope is undefined, so state. Then indicate whether the line rises, falls, is horizontal, or is vertical.(-1, -8), (-1, -7)
A. 0, is horizontal
B. 
, rises
C. 
, rises
D. undefined, is vertical
Find the equation of a circle satisfying the given conditions.Center: (0, -8); radius: 
A. (x + 8)2 + y2 = 225 B. x2 + (y + 8)2 = 15 C. (x - 8)2 + y2 = 225 D. x2 + (y - 8)2 = 15
Solve the system by the elimination method.-6x + 8y = -12-4x - 3y = -8
A. {(2, 0)} B. {(2, 1)} C. {(1, 1)} D. ?
Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?
Fill in the blank(s) with the appropriate word(s).