Introduction to Quadratic Functions Answers
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What is f(−3) for the function f(a)=−2a2−5a+4?
A
−29B
−23C
1D
372
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On a coordinate plane, a parabola opens up. It goes through (negative 7.5, 4), has a vertex of (negative 3, negative 9), and goes through (1.5 4). Solid circles appear on the parabola at (negative 7, 1.75), (negative 6, negative 3), (negative 3, negative 9), (0, negative 3), (1, 1.75).
A
–9B
–3C
0D
93
Which represents a quadratic function?
A
f(x) = 2x3 + 2x2 – 4B
f(x) = –7x2 – x + 2C
f(x) = –3x + 2D
f(x) = 0x2 + 3x – 34
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.5
When the polynomial is written in standard form, what are the values of the leading coefficient and the constant?5x + 2 – 3x2
A
The leading coefficient is 5, and the constant is 2.B
The leading coefficient is 2, and the constant is 5.C
The leading coefficient is –3, and the constant is 2.D
The leading coefficient is 2, and the constant is –3.Did you find these answers helpful?
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