Perform the requested operation on the given function.f(x) = 2x2 - 7, g(x) = x + 5Find (f - g)(1).
A. -1
B. -11
C. -9
D. 4
Answer: B
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The ? shape in the figure below is shown using 9 pixels in a 3 × 3 grid. The color levels are given to the right of the figure. Use the matrix 
that represents a digital photograph of the ? shape to solve the problem.
Adjust the contrast by leaving the black alone and changing the light grey to dark grey. Use matrix addition to accomplish this.
A. 
+ 
= 
B. 
+ 
= 
C. 
+ 
= 
D. 
+ 
= 
Find the equation of the parabola described.Vertex at (3, 4); focus at (7, 4)
A. (x - 4)2 = -12(y - 4) B. (y - 4)2 = -16(x - 3) C. (x - 4)2 = 12(y - 4) D. (y - 4)2 = 16(x - 3)
Find the slope and the y-intercept.-x + 6y = 72
A. m = - 
; (0, 12)
B. m = -1; (0, 72)
C. m = 6; (0, -72)
D. m = 
; (0, 12)
Solve the equation on the interval 0 ? ? < 2?.tan (2?) - tan ? = 0
A. 
, 
, 
, 
, 
, 
, 
B. 
, 
C. 0, ?
D. 0