Evaluate the function.f(x) = 5x2 - 5x + 4; Find f(t - 1).
A. 5t2 + 15t + 4
B. 5t2 - 15t + 4
C. 5t2 - 15t + 14
D. -15t2 + 5t + 14
Answer: C
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Determine the symmetries of the curve.r2 = 9 sin 3?
A. x-axis, y-axis, origin B. y-axis only C. Origin only D. x-axis only
Find the x- and y-intercepts. Then graph the equation.8y - 2x = -10
A. 
; (0, -5)
B. (-5, 0); 
C. (5, 0); 
D. 
; (0, 5)
Determine the domain and range of the relation. State whether the relation is a function or not a function. 
A. domain: {Ms. Lee, Mr. Bar} range: {Bob, Ann, Dave} function B. domain: {Bob, Ann, Dave} range: {Ms. Lee, Mr. Bar} not a function C. domain: {Ms. Lee, Mr. Bar} range: {Bob, Ann, Dave} not a function D. domain: {Bob, Ann, Dave} range: {Ms. Lee, Mr. Bar} function
Solve the problem.An airline charter service charges a fare per person of $350 plus $20 for each unsold seat. The airplane holds 100 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = (100 - x)(350 + 20x) or 35,000 + 2000x - 20x2 B. R(x) = x(350 + 20x) or 350x + 20x2 C. R(x) = (100 - x)(350 + 20x) or 35,000 + 1650x - 20x2 D. R(x) = 100(350 + 20x) or 35,000 + 2000x