Practice Unit 5 Functions

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The input of a function

• Dependent Variable

• Range

• Independent Variable

• Discrete Graph

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

A graph whose points do NOT make a line

• linear
• function
• non-linear
• range

Tags

CCSS.8.F.A.3

A graph whose points MAKE a line

• linear

• function

• non-linear

• range

Find the slope given these points:

(-2,-3) & (2,3)

• 3/2

• 0

• undefined

• -3/2

Tags

CCSS.8.EE.B.5

Find the slope given these points:

(-5,3) & (3,5)

• 1/4

• 4

• 1

• -1

Tags

CCSS.8.EE.B.5

What is the slope in this picture?

• Positive
• Negative
• Zero
• Undefined

Tags

CCSS.8.EE.B.5

For the equation
y - 3 = 2(x + 4),
the line has a slope of 2 and contains what point?

• (-4, 3)
• (3, -4)
• (-3, -4)
• (-4, -3)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

Write the equation of the line that passes through the points (1, -6) and (4, 3)

• y = 3x - 9

• y = 1/3x - 5

• y = 3x - 1

• y = 3x - 7

What is the slope?

• 2/5
• 5/2
• 3
• 5.5

Tags

CCSS.8.EE.B.5