Find a linear function whose graph has the given slope and y-intercept.Slope - , y-intercept 4

A. f(x) = - x + 4
B. f(x) = - x - 4
C. f(x) = x - 4
D. f(x) = x + 4


Answer: A

Mathematics

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A. ? B. ?

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Graph the exponential function and state the domain and range.y = 2-x

A. Domain: (0, ?), Range: (0, ?)

B. Domain: (-?, ?), Range: (0, ?) 

C. Domain: (-?, ?), Range: (-?, 0)

D. Domain: (-?, 0), Range: (-?, 0)

Mathematics

The figure depicts a racetrack with ends that are semicircular in shape. The length of the track is . ? ? Find r and lso that the area enclosed by the rectangular region of the racetrack is as large as possible. ?

A.
B.
C. ?
D. ?

Mathematics

State the degree and leading coefficient of the polynomial function.f(x) = 19 + 14x + 10x2 - 19x3 - 18x4

A. Degree: 4; leading coefficient: 19 B. Degree: 4; leading coefficient: -18 C. Degree: 19; leading coefficient: -18 D. Degree: 3; leading coefficient: -19

Mathematics