Unit Test — Unit test Answers
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Consider the function shown on the graph.
A
f(x) = (x + 3)(x + 7)B
f(x) = (x – 3)(x – 7)C
f(x) = 3(x – 3)(x – 7)D
f(x) = 11(x + 3)(x + 7)22
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Which translation maps the graph of the function f(x) = x2 onto the function g(x) = x2 + 2x + 6?
A
left 1 unit, up 5 unitsB
right 1 unit, up 5 unitsC
left 2 units, up 2 unitsD
right 2 units, up 2 units23
According to one company’s profit model, the company has a profit of 0 when 10 units are sold and a maximum profit of $18,050 when 105 units are sold. What is the function that represents this company’s profit f(x) depending on the number of items sold, x?
A
f(x)=−2(x+105)2+18,050B
f(x)=−2(x−105)2+18,050C
f(x)=−10(x+105)2+18,050D
f(x)=−10(x−105)2+18,05024
The zeros of a parabola are 6 and −5. If (-1, 3) is a point on the graph, which equation can be solved to find the value of a in the equation of the parabola?
A
3 = a(−1 + 6)(−1 − 5)B
3 = a(−1 − 6)(−1 + 5)C
−1 = a(3 + 6)(3 − 5)D
−1 = a(3 − 6)(3 + 5)25
What possible changes can Martha make to correct her homework assignment? Select two options.
A
The first term, 5x3, can be eliminated.B
The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2.C
The exponent on the second term, 2x2, can be changed to a 3 and then combined with the first term, 5x3.D
The constant, –3, can be changed to a variable.E
The 7x can be eliminated.Did you find these answers helpful?
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