Math Functions

Using the vertical line test, a relation in graph form is a function if none of the vertical lines drawn in the graph intersects the graph in more than one point.. 

• TRUE

• FALSE

Given two functions f(x) and g(x), the result of (f + g)(x) is just the same with the result of (g + f)(x).

• TRUE

• FALSE

Tags

CCSS.HSF-BF.A.1C

Which of the following numbers is the value of g(x)  if  g(x) = 2x² + 4x – 8  is evaluated at  x = -3 ? 

• -2

• 2

• 4

• 8

Tags

CCSS.HSF.IF.A.2

A function that is defined by different sets of input values is said to be a piece-wise function.

• TRUE

• FALSE

Given two functions f(x) and g(x), the result of (f - g)(x)  is just the same with the result of (g – f)(x).

• TRUE

• FALSE

Tags

CCSS.HSF-BF.A.1B

Given two functions f(x) and g(x), the result of (f • g)(x) is just the same with the result of (g • f)(x).

• TRUE

• FALSE

Tags

CCSS.HSF-BF.A.1C

Given two functions f(x) and g(x), the result of \left(\frac{f}{g}\right)x is just the same with the result of \left(\frac{g}{f}\right)x.

• TRUE

• FALSE

Tags

CCSS.HSF-BF.A.1B

Which of the following numbers is the value of  f(x) if f(x) = -4x + 12  is evaluated at x = -5 ?

• 32

• 21

• 7

• -8

Tags

CCSS.HSF.IF.A.2

Given a function  f(x) = 4x – 7 ,  which of the following numbers is the value of x  if f(x) = 5  ?

• 8

• 5

• 3

• 1

Tags

CCSS.HSF.IF.A.2

• Yes
• No

Tags

CCSS.8.F.A.1