Introduction to Quadratic Functions

Question 1

What is f(−3) for the function f(a)=−2a2−5a+4?

Revolt · Accepted Answer

1

Question 2

liana started to evaluate the function f(x) = 2x2 – 3x + 7 for the input value 2.f(x) = 2(2)2 – 3(2) + 7 = 2(4) – 3(2) + 7

Revolt · Accepted Answer

9

Question 3

Which represents a quadratic function?

Revolt · Accepted Answer

f (x) = x 2 + 2x − 5

Question 4

Consider the quadratic function f(x)=8x2−7x+6. What is the constant of the function?

Revolt · Accepted Answer

6

Question 5

A 2-column table with 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f of x with entries 21, 10, 5, 6, 13.

Revolt · Accepted Answer

f(x) = 3x2 – 2x + 5

Question 6

Which is f(5) for the function –2x2 + 2x – 3?

Revolt · Accepted Answer

–43

Question 7

When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown?2 + 7c – 4c2 – 3c + 4

Revolt · Accepted Answer

–4c2 + 4c + 6

Question 8

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

Revolt · Accepted Answer

f(x) = 2x2 + 3x – 3

Question 9

Which function increases at the fastest rate between x = 0 and x = 8?

Revolt · Accepted Answer

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.

Question 10

On a coordinate plane, a parabola opens down. It goes through (negative 1.9, negative 4), has a vertex of (0.5, 3.2), and goes through (3, negative 4).

Revolt · Accepted Answer

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