Quadratic in Context

• 80 feet

• 5 feet

• 2 feet

• 144 feet

• 80 seconds

• 5 seconds

• 2 seconds

• 144 seconds

• 80 feet

• 5 feet

• 2 feet

• 144 feet

• $1

• $9

• $5

• $800

A function is shown. f(x) = x² - 6x -27.

Fill in the blanks below to make the statement true.

"The graph of f(x) has a minimum value of ​ (a)   and has zeros at ​ (b)   and ​ (c)   ​

• -27

• -36

• -33

• -42

• -9

• -3

• 0

• 3

• 9

• 4

Tags

CCSS.HSF-IF.C.7A

Which of the following represents a quadratic function?

Answer explanation

This is only one possible choice. As long as the y-intercept is less than 3 and the quadratic shows a maximum value for its vertex, it would be correct.

Tags

CCSS.HSF-IF.C.7A

Analyze the given graph and the determine the correct function.​ (a)   ​ (b)  

• x(x-2)

• x+(x-2)

• (x+4)(x+5)

• (x-0)

Tags

CCSS.HSF-IF.C.7A

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A