Finding Slope and Y Intercept from a Graph and Table

How do you calculate the slope or rate of change for a graphed line?

• Pick two pretty points; make a right triangle; calculate run over rise

• Pick two pretty points; make a right triangle; calculate rise over run

• Make a right triangle and use a² + b² = c²

• Look to see where the line crosses the y-axis

Tags

TEKS.MATH.8.4B

If the data from this table were plotted on a coordinate grid, what would be true? Choose ALL answers that apply.

• The line would have a negative slope

• The line would have a positive slope

• The y-intercept would be at the y-value of 270

• The y-intercept would be at the y-value of 0

Tags

TEKS.MATH.A.3B

TEKS.MATH.A.3C

What is the y-intercept? Choose ALL answers that apply.

• The rise over the run

• Where the line crosses the y-axis

• The rate of change

• The beginning value, when x = 0

Tags

TEKS.MATH.A.3C

What is the slope of the graphed line?

• ¼

• -¼

• 4

• -4

Tags

TEKS.MATH.8.4B

• F

• G

• H

• J

Tags

TEKS.MATH.P.2A

TEKS.MATH.P.2G

TEKS.MATH.P.2J

TEKS.MATH.P.2N

What is the Slope? What is the Y-intercept? What is the equation?

b

a

f

10

10/6

5/2

13

10/4

(13, 0)

(0,13)

Tags

TEKS.MATH.8.5I

TEKS.MATH.A.2B

What is the Slope? What is the Y-intercept? What is the equation?

b

a

f

10/6

10/4

13

10

(0,13)

(13, 0)

5/2

Tags

TEKS.MATH.8.5I

TEKS.MATH.A.2B

What is the slope?

a

b

c

Tags

TEKS.MATH.8.4B

What is the slope and y-intercept represented in the table?

Tags

TEKS.MATH.A.2C

find the slope and the y-intercept

• m=3; b=1

• m=4; b=-2

• m=-3; b=1

• m=1; b=7

Tags

TEKS.MATH.A.2C