Sketch the graph of the function and find the domain and range.f(x) = (x - 2)2 - 1
A. domain: all real numbers
range: y ? -1
B. domain: all real numbers
range: y ? 2
C. domain: all real numbers
range: y ? -2
D. domain: all real numbers
range: y ? -1
Answer: A
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Find the area of the region.
15 yd
A. 105 sq yd B. 1340 sq yd C. 1125 sq yd D. 1350 sq yd
Solve the equation symbolically.0.2(7 + t) = 3t + 0.7
A. 0.05 B. 0.25 C. 0.95 D. 0.45
Write an algebraic expression for the specified quantity.A merchant has light roast coffee worth $3.50 a pound that she wishes to mix with dark roast coffee worth $6.99 a pound. Let x = the number of pounds of dark roast coffee in a 80-pound mixture of light roast coffee and dark roast coffee. Write an algebraic expression in x for (i) the number of pounds of light roast coffee in the 80-pound mixture; (ii) the value of the dark roast coffee in the 80-pound mixture; (iii) the value of the light roast coffee in the 80-pound mixture.
A. (i) 80 - x (ii) $6.99(80 - x) (iii) $3.50x B. (i) 80 + x (ii) $6.99x (iii) $3.50(80 + x) C. (i) 80 + x (ii) $6.99(80 + x) (iii) $3.50x D. (i) 80 - x (ii) $6.99x (iii) $3.50(80 - x)
Rationalize the denominator.
A. 
B. 
C. 
D. 
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