Tables
Graphs
Equations and Inequalities
Word Problems
Y-Intercepts
100

Find the Constant of Proportionality (CoP) and write the direct variation equation from the table.

k=200

y=200x

100

Draw an example of a graph that is NOT a direct varitation?

Answers may vary but it MUST break SOS.

Straight line

Origin

Same Ratio 

100

Is the equation proportional or non-proportional? Why or why not?

y=1/2x

Yes it is proportional because it goes through the origin and k=1/2.

100

Write an equation for this linear relationship.


Emir started out the card game with 500 points.  For every hand he won, he gained 100 points

y=100x+500

100

Find the y-intercept 

b=-3 or (0, -3)

200

Find the y-intercept.

b=70

200

Use the graph to write its equation in slop intercept form.

y=-4/5x+4

200

Identify m and b, and write an equation.

The slope is 3

The y-intercept is 2

m=3

b=2

y=3x+2

200

In a direct variation, y=18 and x=2.


Write a direct variation equation that shows the relationship between x and y.




y=9x

200

Find the y-intercept

b=3 or (0,3)

300

Yes, because all ratios simplify to k=12.

300

Use the graph to write an equation.

y=50x

300

Use the equation to find the y value when x=15.

y=31

300

Find and Interpret the Constant of Proportionality (CoP).

k=3

3 pages of notes in 1 hour of class OR 3 pages of notes every 1 hour of class.

300

Find the y-intercept.

b=0 or (0,0)

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