Graph the inequality.x2 + y2 ? 1
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Evaluate 
at (x, y, z) = (5, 2, 2) for the function u(p, q, r) = p2 - q2 - r; p = xy, q = y2, r = xz.
A. 18 B. 38 C. 42 D. 22
Estimate the answer from the table or graph.The number of students at Alder High School who studied foreign languages in different years is shown in the bar graph. What is the total number of students who studied a foreign language in 2012? (Assume no student studied two foreign languages).
2006200820102012Year
A. 90 students B. 150 students C. 130 students D. 170 students
Determine the slope and the y-intercept. Then graph the equation.4x - 5y = 27
A. m = - 
; y-intercept: 
B. m = - 
; y-intercept: 
C. m = 
; y-intercept: 
D. m = 
; y-intercept: 
Use the graph to determine whether the function is one-to-one.
A. Yes B. No