Quadratic Functions: Standard Form

Question 1

The graph of which function will have a maximum and a y-intercept of 4?

Revolt · Accepted Answer

f(x) = –x2 + 2x + 4

Question 2

What is the vertex of the function f(x) = x2 + 3x + ?

Revolt · Accepted Answer

✔ –3; (, ): –3

Question 3

[___]

Revolt · Accepted Answer

2

Question 4

minimum valuemaximum valuey-intercept

Revolt · Accepted Answer

maximum value; Selection 1: maximum value; Selection 2: when x < –1; Selection 3: when x > –1; Selection 4: all real numbers; Selection 5: all numbers less than or equal to 0

Question 5

([___], [___])

Revolt · Accepted Answer

Part 1: -3; Part 2: -4; -3

Question 6

The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?

Revolt · Accepted Answer

(1, 3)

Question 7

Left-most x-intercept: ([___], 0)

Revolt · Accepted Answer

Part 1: -5; Part 2: 3; -5

Question 8

Which must be true of a quadratic function whose vertex is the same as its y-intercept?

Revolt · Accepted Answer

The axis of symmetry for the function is x = 0.

Question 9

Which error did Mathieu make?

Revolt · Accepted Answer

He set the factored expressions equal to each other.

Quadratic Functions: Standard Form Answers

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