Determine where the given function is increasing and where it is decreasing. f(x) = x2 + 7x - 4
A. Increasing on 
and (0, ?), decreasing on 
B. Decreasing on 
, increasing on 
C. Increasing on 
, decreasing on 
D. Decreasing on 
, increasing on 
Answer: D
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Write the function in standard form and find the vertex.f(x) = -4x2 + 8x - 6
A. f(x) = -4(x + 2)2 - 38; (-2, -38) B. f(x) = -4(x - 2)2 - 14; (2, -14) C. f(x) = -4(x + 1)2 - 18; (-1, -18) D. f(x) = -4(x - 1)2 - 2; (1, -2)
Solve the special system by elimination. If the system is dependent, write the solution using set-builder notation with the common line expressed in slope-intercept form.
A. {(x, y)|y = 5x + 7}
B. {(x, y)|y = -5x + 7}
C. ?
D. 
Write the fraction as a decimal and then write the decimal as a percent. Round the decimal to three decimal places and the percent to the nearest tenth of a percent.
A. 1.462; 146.2% B. 14.617; 1461.7% C. 0.146; 14.6% D. 0.015; 1.5%
Sketch the graphs of the given functions on the same axes.
?
and 
?
A. ?
B. ?
C. ?
