Solve the system by graphing.x + y = -2x - y = -16
A. (7, -9)
B. Infinite number of solutions
C. No solution
D. (-9, 7)
Answer: D
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Solve the problem.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 3 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 675 cubic inches, find the length of one side of the open box.
A. 18 in. B. 21 in. C. 15 in. D. 14 in.
Use long division to find the quotient and the remainder
A. quotient: p + 7; remainder: 4 B. quotient: p - 7; remainder: 4 C. quotient: p - 7; remainder: 0 D. quotient: p - 4; remainder: 7
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x2(x - 2)(x - 6)
A. 0, crosses the x-axis; 2, crosses the x-axis; 6, crosses the x-axis B. 0, crosses the x-axis; 2, touches the x-axis and turns around; 6, touches the x-axis and turns around C. 0, touches the x-axis and turns around; 2, crosses the x-axis; 6, crosses the x-axis D. 0, touches the x-axis and turns around; -2, crosses the x-axis; -6, crosses the x-axis
Refer to the graph of the linear function defined by 
or the graph of the linear functions defined by 
and 
to solve the equation or inequality.
f(x) < 0
A. (-5, ?) B. (-4, ?) C. (-?, -5) D. (-?, -4)