Write the expression in the standard form a + bi.If z = 4 - 6i, evaluate z
.
A. 16 - 36i
B. 52
C. 16 - 36i2
D. -20
Answer: B
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = - 
A. (3, ?) B. (-?, -3) C. (-3, ?) D. (-?, 3)
Solve the problem.If f varies jointly as q2 and h, and f = -24 when q = 2 and h = 2, find f when q = 4 and h = 3.
A. f = -48 B. f = -144 C. f = -9 D. f = -36
Find the x- and y-intercepts. If no x-intercepts exist, state so.y = -13x2 - 16x - 17
A. No x-intercepts, (0, -17)
B. 
, (0, -17)
C. 
, (0, 17)
D. No x-intercepts, (0, 17)
Graph the radical function. Compare the graph to that of the square root function or cube root function.g(x) = 
A. It looks like the graph of the square root
function, but it is shifted 3 units down.
B. It looks like the graph of the square root
function, but it is shifted 3 units up.
C. It looks like the graph of the square root
function, but it is shifted 3 units to the left.
D. It looks like the graph of the square root
function, but it is shifted 3 units to the right.