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 parabola in the graph?

Revolt · Accepted Answer

-3; -4

Question 3

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

Revolt · Accepted Answer

(, ): –3

Question 4

Consider the function f(x) = x2 + 2x – 15. What are the x-intercepts of the function?

Revolt · Accepted Answer

x: -5; x: 3

Question 5

Question 80618

Revolt · Accepted Answer

2

Question 6

Use the drop-down menus to describe the key aspects of the function f(x) = –x2 – 2x – 1.

Revolt · Accepted Answer

The vertex is the .: maximum value; The function is increasing .: when x < –1; The function is decreasing .: when x > –1; The domain of the function is .: all real numbers; The range of the function is .: all numbers less than or equal to 0

Question 7

✔ when x –1for all real numbers of xfor no values of x

Revolt · Accepted Answer

✔ when x < –1

Question 8

when x –1for all real numbers of xfor no values of x

Revolt · Accepted Answer

✔ when x > –1

Question 9

✔ all real numbersall real numbers less than –1all negative real numbersall positive real numbers

Revolt · Accepted Answer

✔ all real numbers

Question 10

all real numbersall real numbers less than –1✔ all numbers less than or equal to 0all numbers greater than or equal to 0

Revolt · Accepted Answer

✔ all numbers less than or equal to 0

Quadratic Functions: Standard Form Answers

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