Find x and y.
= 
A. x = 4, y = 7
B. x = 2, y = -6
C. x = 5, y = 7
D. x = 
, y = 7
Answer: A
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Write the equation of the line with the given slope and y-intercept.slope 
;y-intercept (0, 2)
A. y = - 
x - 2
B. y = 
x + 2
C. y = 
x - 2
D. y = - 
x + 2
Calculate the period of the function.f(x) = cos 13x - cos 8x
A. 2? B. 104? C. 208? D. 104
Solve using elimination.
A. x= 1, y = 3; x = 1, y = -3; x = -1, y = 3; x = -1, y = -3 or (1, 3), (1, -3), (-2, 3), (-2, -3) B. x = 2, y = 3; x = 2, y = -3; x = -2, y = 3; x = -2, y = -3 or (2, 3), (2, -3), (-2, 3), (-2, -3) C. x = 2, y = -3; x = -2, y = 3 or (2, -3), (-2, 3) D. x = 1, y = 3; x = -1, y= -3 or (1, 3), (-1, -3)
Find the x-intercepts of the graph of the equation. (The grids are intentionally not included.)y = x2 + 3x - 70
A. (10, 0), (1, 0) B. (-10, 0), (7, 0) C. (17, 0) D. (10, 0), (-7, 0)