Writing and interpreting linear functions

What is the equation by looking at this graph?

• y= x + 3

• y= -x + 2

• y= 2x + 2

• y= x + 2

Choose the equation of the graphed line in slope-intercept form (y = mx + b).

Write the an equation for the graph shown.

• y = -2x + 4

• y = 2x + 2
• y = 1/2x- 2
• y = -1/2x + 2

Which equation represents this line?

• y = 1/4x + 3

• y = 1/3x + 4

• y = 3x + 4

• y = 4x + 3

Answer explanation

What is the slope? What is the y-intercept?

Which equation can be used to describe in the relationship between x and y shown in the graph?

• y = -2/3 x -1

• y = 3/2 x + 1

• y = 2/3 x + 1

• y = -3/2 x + 1

How confident are you about writing linear equations from a graph?

• I can do it

• I need some help

• I still have questions

• I am a little lost

What is the equation for the line in slope intercept form?

• y = 1/3x - 1

• y = 3/2x - 1

• y = 3x - 1

• y = 2/3x - 1

Which equation is being represented by this line?

• y = -x + 2

• y = (1/2)x + 2

• y = 3x - 4

• y = -3x + 2

What is the equation for the line?

• y=-2x-2

• y=x+2

• y=3x-1

• y=2x+3

Which equation represents the line on the graph?

• y = 2x + 1
• y = 2x + 4
• y = -2x + 4
• y = x + 4