Introduction to Quadratic Functions Answers
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21
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Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?
A
f(x) = 2x3 – 3B
f(x) = –3x2 – 3x + 2C
f(x) = –3x3 + 2D
f(x) = 2x2 + 3x – 322
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Which function increases at the fastest rate between x = 0 and x = 8?
A
A 2-column table with 5 rows titled Linear Function with the equation f of x = 2 x + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 6, 10, 14, 18.
B
A 2-column table with 5 rows titled Exponential Function with the equation f of x = 2 Superscript x Baseline + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 3, 6, 18, 66, 258.
C
A 2-column table with 5 rows titled Quadratic Function with the equation f of x = 2 x squared + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 10, 34, 74, 130.
D
A 2-column table with 5 rows titled Linear Function with the equation f of x = 3 x + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 8, 14, 20, 26.
23
Which is f(5) for the function –2x2 + 2x – 3?
A
–107B
–63C
–43D
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