Precalculus Functions

f(x) = 4x + 1 and g(x) = 4x - 3
Find f(x) * g(x)

• 16x² + 8x - 3

• 16x² - 8x + 3

• 16x² - 8x - 3

• 16x² - 16x - 3

Tags

CCSS.HSF-BF.A.1B

Is the mapping of the relation a function? Why?

• Yes, because the x-value 11 has two outputs.

• Yes, because each input has only one output paired with it.

• No, because the x-value 11 has 2 outputs .

• No, because each input has only one output.

Tags

CCSS.8.F.A.1

Is this graph a function or not a function?

• Yes, it passes the vertical line test

• Yes, it passes the horizontal line test

• No, it does not pass the vertical line test

• No, it does not pass the horizontal line test

Answer explanation

It passes the "vertical line test", which means every input has exactly one output.

Is the inverse of this graph a function or not a function?

• Yes, it passes the vertical line test

• Yes, it passes the horizontal line test

• No, it does not pass the vertical line test

• No, it does not pass the horizontal line test

Answer explanation

It passes the "vertical line test", which means every input has exactly one output.

• -20

• 20

• -24

• 24

Tags

CCSS.HSF.IF.A.2

Evaluate the function at h(-5).

Mathematical Equivalence

ON

Tags

CCSS.HSF.IF.A.2

• 8/5

• 
• 
• 

Tags

CCSS.HSF-BF.A.1C

Evaluate f(3)

• -4

• 0

• 3

• undefined

Tags

CCSS.HSF-IF.C.7B

Find g(- 2).

• 12

• -2

• -24

• 18

Tags

CCSS.HSF.IF.A.2

Evaluate f(-5)

• -5

• -3

• 0

• undefined

Tags

CCSS.HSF.IF.A.2