Create Linear Equations from a Graph

Write the an equation for the graph shown.

• y = -2x + 2

• y = 2x + 2

• y = 1/2x- 2

• y = -1/2x + 2

When given two points and asked to write an equation, what is your first step?

• Find the slope

• Find the y-intercept

• Find the x-intercept

• Write the equation

What is the function of the table?

• y=3x+1

• y=4x-2

• y=x+1

• y=x+7

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write the equation of a line that passes through the point (1,4) and has a slope of 9.

• y= 9x-4

• y= 9x-5

• y= 9x+4

• y= 9x+5

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

If the graph of the parent function f(x) = x is shifted 7 units
down, which of the following equations would the new graphed
line represent?

• f(x) = 7x

• f(x) = x - 7

• f(x) = x + 7

• f(x) = 7x - 7

This table represents some points on the graph of a linear function. Write a function that would represent the same relationship.

Mathematical Equivalence

ON

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The graph models a linear function. The rate of change of the graph is ​ (a)   dollars per hour.

• 50

• 100

• 0

• 1/50

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

A function passes through the points (–4, 48) and (–1, 6). Which equations could represent this function? Select TWO that apply.

• y = 14x -8

• y = -14x - 8

Tags

CCSS.HSF.LE.A.2

Which of the following systems represents the graph?

Tags

CCSS.8.EE.C.8B