Graph Lines Using Intercepts and Slope Intercept

• slope: 5  

  y-intercept:  (3/2,0) 

• slope: 3/2  

  y-intercept:  (0,5) 

• slope:  5 

  y-intercept:  (0,3/2)

• slope: 3/2  

  y-intercept:  (-5,0) 

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write the equation of the line in slope intercept form.

Write the equation of the line in slope intercept form.

The graph represents one line, and the table represents a different line. How are the lines similar? How are they different?

• Same slope,

  different y-intercepts

• Same y-intercepts,

  different slopes

• Same slope,

  same y-intercepts

• Different slopes,

  different y-intercepts

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Marsha starts the week with $20, and she gets a job that pays $15 per hour. Write an equation in slope intercept form representing the amount of money Marsha will have at any given number of weeks.

Tags

CCSS.6.EE.C.9

Write the equation of the line.

• y = -2/3x + 4

• y = 2/3x + 4

• y = 3/2x + 4

• y = -3/2x + 4

If you where to graph the equation y = 2x - 3, how would you begin?

• By going up 2 and over 1

• By placing a point at -3 on the y-axis

• By going down 2 and over 3

• By going up 2 and over 3

How would you graph y = ¹/₂ x + 2

• Allow your pencil to aimlessly drift across your paper until- Behold! A line is formed!

• Place a point at 0.5 on your y-axis. Then go up 2 and right 1 and place your second point. Draw your line.

• Start at the origin and go down 1 and over 2 again and again until you see your line.

• Place a point at 2 on the y-axis. Then from that point go up 1 and right 2 and place your second point. Draw your line. (Or make a t-chart)

Solve with substitution:

y = -2x + 18

y = 8

• (5, 8)

• (-5, 8)

• (2, 8)

• (-2, 8)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Write the equation of the line.

• y = -1/3x - 2

• y = 1/3x - 2

• y = 3x - 2

• y = -3x - 2