State the domain and range of the function.f(x) = -6x - 3
A. domain: (-?, 0) ? (0, ?); range: (-?, -3)
B. domain: (-?, ?); range: (-?, -3]
C. domain: (-?, ?); range: (-?, -3)
D. domain: [0, ?); range: (-?, ?)
Answer: C
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Ace Truck leases its 10-ft box truck at $40/day and $0.45/mi, whereas Acme Truck leases a similar truck at $30/day and $0.50/mi. Find the daily cost of leasing from each company as a function of x number of miles driven. ?
A. 40 + 0.45x, 30 + 0.5x B. 40 + 30x, 0.45 + 0.5x C. 40 + 0.5x, 30 + 0.45x D. 0.45 + 40x, 0.5 + 30x E. 30 + 40x, 0.5 + 0.45x
Give an appropriate answer.Let
f(x) = 225. Find
.
A. 2 B. 15 C. 225 D. 3.8730
Use the graph to identify the x- and y- intercepts or state that there is no x- or y-intercept.
A. x-intercept = 4; y-intercept = -8 B. x-intercept = -8; y-intercept = 8 C. x-intercept = -4; y-intercept = -8 D. x-intercept = 4; y-intercept = 8
Find the domain of the rational function.f(x) = 
A. all real numbers B. all real numbers except 0, -16 C. all real numbers except ±4 D. all real numbers except ±4, -7