Proportional Graph Equations

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Tags

CCSS.7.RP.A.2D

A proportional relationship can be written as an equation in the form:

• y = k+x

• y = k-x

• y = kx

• y = k/x

Tags

CCSS.7.RP.A.2C

y=kx.  What does the k represent?

• constant of proportionality

• multiplier

• scale factor

• all of these are correct

Tags

CCSS.7.RP.A.2B

Determine the constant of proportionality.

• 5

• 0.2

• 1

• 1.4

Tags

CCSS.7.RP.A.2B

Tags

CCSS.8.EE.B.5

Graph the equation

y=3/5x

Graph the equation

y=3x

A snail moving at a constant rate traveled a distance of 2 feet in 1/2 hour. Create a graph to represent y, the number of feet the snail traveled in x hours. Select two points on the coordinate grid that represent the situation.

Tags

CCSS.8.EE.B.5

The cost of five pounds of grapefruit is $6.00. The cost per pound of grapefruit remains the same regardless of the quantity purchased. Graph the relationship between y, the total cost of grapefruit purchased, and x, the weight in pounds of the grapefruit purchased.Plot two points on the coordinate grid.

Tags

CCSS.8.EE.B.5