Slope intercept y=mx+b without given points

Slope intercept y=mx+b without given points

Multiple Choice

Which point is at the coordinates (-2,3)

• A

• B

• C

• D

Multiple Choice

Which of the following graphs has a positive slope?

Slope

Look at the slope from left to right

Left --------------->Right

Up is positive

Down is negative

Horizontal is zero

Vertical is Undefined

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Find the slope of the line.

• 1/2
• -1/2
• 2
• -2

Y=mx

Proportional Relationship

multiply the constant rate of change, slope (m) by x to get the y value.

This intercepts the y-axis at 0

Y-intercept (b)

Where the graph intercepts the y-axis.

Multiple Choice

_{What is the y-intercept of the line?}

• y = 1/2
• y = 1
• y = -1/2
• y = -1

Multiple Choice

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Multiple Choice

What is the y-intercept of this graph?

• (0,1)
• (0,-2)
• (0,0)
• (0,3)

Slope intercept form

y=mx+b

is slope intercept form

m is the slope and b is y-intercept

Multiple Choice

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing

Multiple Choice

What does 'b" represent in y=mx+b

• y-intercept

• macaroni

• nothing

• slope

Multiple Choice

What is the y-intercept in the equation y= -2x + 5

• -2
• 3
• 5
• Cannot be Determined

Multiple Choice

What is the slope in the equation y=2x + 3?

• 2

• 3

• y

• 2x

Multiple Choice

What is the y-intercept of the line y = 4x - 10?

• 4
• -4
• 10
• -10

Multiple Choice

Name the slope

• 2
• -2
• 1/2
• 1/2x

Multiple Choice

Name the slope

• 3
• 1
• -1x
• -1

Wait! There aren't any points

If no points are given you can choose any points that have a clear x and y coordinate.

The green dots would be good choices.

The red dots would not be good points to choose because they are in between integer values on the y-axis.

Multiple Choice

Which red point would make a good choice when determining slope?

• A

• B

• C

• D

Multiple Choice

Which red point would make a good choice when determining slope?

• A

• B

• C

• D

Multiple Choice

Write the equation of the line.

• y=(1/3)x-1
• y=(3/2)x -1
• y=3x-1
• y=(2/3)x-1