Unit Test — Unit test Answers
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The area of a rhombus can be evaluated using the formula , where d1 represents the measure of one of its diagonals and d2 represents the measure of its other diagonal. When d1 is a terminating decimal and d2 is a repeating decimal, what can be concluded about the area of the rhombus?
A
The area is irrational because both diagonals are irrational.B
The area is rational because the product of an irrational diagonal and rational diagonal will be multiplied by the rational fraction .
C
The area is rational because the formula will multiply both rational diagonals and the fraction .
D
The area is irrational because the formula will multiply two decimals by a fraction.24
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Which function is a quadratic function?
A
a(x) = –2x3 + 2x – 6B
b(x) = 5x3 + 8x2 + 3C
c(x) = –8x2 + 3x – 5D
d(x) = 6x4 + 2x – 325
Which is one of the transformations applied to the graph of f(x)=x2 to change it into the graph of g(x) = –x2 + 16x – 44?
A
The graph of f(x) = x2 is widened.B
The graph of f(x) = x2 is shifted left 8 units.C
The graph of f(x) = x2 is shifted down 44 units.D
The graph of f(x) = x2 is reflected over the x-axis.Did you find these answers helpful?
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