Functions (linear)

Use x and y intercepts to solve

-5x + 4y = -20

• x = -4

  y = 5

• x = 5

  y = -4

• x = -5

  y = 4

• x = 4

  y = -5

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept and what does it mean for the context?

• (0, 1). The height of the plant was 1 cm. at the start

• (0, 0) The plant was 0 cm. tall at the start.

• (1, 9). The height reaches a peak of 9 cm.

Tags

CCSS.HSF-IF.C.7A

Linear function t has an x-intercept of -1 and a y-intercept of 5. Which graph best represents t?

• 
• 
• 
• 

Tags

A.3c

Given the function y = x what part represents the y-intercept?

• (0, 1)

• 0

• none

• (0,0)

Tags

CCSS.HSF-IF.C.7A

Find the zero(s) of the function.

• x = -3
• x = 1
• x = {-3, 1}
• y = 1

Tags

CCSS.HSF-IF.C.7A

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7A

When using the STAT key to write an equation, you ALWAYS need a __________!

• graph

• table

• y =

• None of the above

Tags

CCSS.HSF-IF.C.7A

if there is no room on the graph to go up what do you do ?

• stop graphing

• go down / opposite

Tags

CCSS.HSF-IF.C.7A

Identify the graph with a x-intercept of 3 and a y-intercept of - 1

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7A

Where is the function negative?

• (6, ∞)
• (-∞, 6)
• (0, ∞)
• (-∞, 0)

Tags

CCSS.HSF-IF.C.7A