Graph Linear Function by Using Slope Intercept Form

When you graph a line using slope-intercept form, you plot the  ___________ first and then the ___________.

• origin; slope 

• slope; y-intercept

• y-intercept; x-intercept

• y-intercept; slope

In the equation, y = mx + b, the letter b is the ___________.

• y-intercept

• x-intercept

• slope

• rate of change

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope of the equation?
y = -3x + 4

• -3

• 3

• 4

• -4

Tags

CCSS.8.EE.B.5

Write the equation for the line

•  y=⅗x+1

•   y=⅗x-1

•  y=(5/3)x+1

• y=(3/5)x+1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Answer explanation

You need three points. 1 at the y-axis, 1 left of the y-axis, & 1 right of the y-axis

Tags

AI.9.2.B

Graph the function

f(x)=3x-5

(remember slope intercept form f(x)=ax+b where a is slope, b is y-intercept) Start by plotting the y-intercept, then count the slope to the next point

Answer explanation

Graph the function

f(x)=3x+5

(remember slope intercept form f(x)=ax+b where a is slope, b is y-intercept) Start by plotting the y-intercept, then count the slope to the next point

Answer explanation

• 3 units up, 2 units right

• 6 units down

• 3 units down, 2 units right

• 2 units down, 3 units right

• 2 units up, 3 units right

• 6 units up

Answer explanation

DON'T SKIP THIS!

Perform the correct steps until you have plotted all possible visible points. (The final graph will be shown after the next equation.)

• 9 units up

• 5 units down, 1 unit left

• 9 units down

• 5 units down, 1 unit right

• 5 units up, 1 unit left

• 1 unit up, 5 units right

Answer explanation

DON'T SKIP THIS!

You would have normally plotted 5 units up, 1 unit right, but there was no room to make a point that way. Therefore, you had to immediately go in the opposite directions of 5 down & 1 left.

Perform the correct steps until you have plotted all possible visible points. If correct, the graph of both equations should match the picture shown.