Pretest

Question 1

Which represents a quadratic function?

Revolt · Accepted Answer

f of x is equal to negative 7 x squared minus x plus 2

Question 2

Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of negative 3 ?

Revolt · Accepted Answer

f of x is equal to 2 x squared plus 3 x minus 3

Question 3

When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown? 2 plus 7 c minus 4 c squared minus 3 c plus 4

Revolt · Accepted Answer

negative 4 c squared plus 4 c plus 6

Question 4

Which function increases at the fastest rate between x is equal to 0 and x is equal to 8 ?

Revolt · Accepted Answer

Exponential Function f of x is equal to 2 to the x th power plus 2 Table with 2 columns and 6 rows.Row 1: Column 1, 'x'; Column 2, 'f of x' Row 2: Column 1, '0'; Column 2, '3' Row 3: Column 1, '2'; Column 2, '6' Row 4: Column 1, '4'; Column 2, '18' Row 5: Column 1, '6'; Column 2, '66' Row 6: Column 1, '8'; Column 2, '258'

Question 5

What is f of negative 3 for the function f of A is equal to negative 2 A squared minus 5 A plus 4 ?

Revolt · Accepted Answer

1

Question 6

Martha wrote an example of a quadratic function for a homework assignment. The function she wrote is shown. Martha's Work f of x is equal to 5 x cubed plus 2 x squared plus 7 x minus 3 What possible changes can Martha make to correct her homework assignment? Choose two correct answers.

Revolt · Accepted Answer

The first term, 5 x cubed , can be eliminated.; The exponent on the first term, 5 x cubed , can be changed to a 2 and then combined with the second term, 2 x squared .

Question 7

Consider the quadratic function f of x is equal to 8 x squared minus 7 x plus 6 What is the constant of the function?

Revolt · Accepted Answer

6

Question 8

Which is f of 5 for the function negative 2 x squared plus 2 x minus 3 ?

Revolt · Accepted Answer

negative 43

Question 9

When the polynomial is written in standard form, what are the values of the leading coefficient and the constant? 5 x plus 2 minus 3 x squared

Revolt · Accepted Answer

The leading coefficient is negative 3 , and the constant is 2 .

Question 10

Which graph represents a quadratic function with a vertex at 0 comma 0 ?

Revolt · Accepted Answer

Image with description A coordinate plane with the x-axis labeled from negative 7.5 to 7.5 and the y-axis labeled from negative 2 to 6. An upward-opening parabola is plotted that passes through the point negative 5 comma 6, has a vertex at the point 0 comma 0, and passes through the point 5 comma 6.

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