Recognising and representing proportional relationships between quantities

Three pounds of Chicken costs $15. Write an equation to best represent y AND select the correct table, the total cost, and x the number of pounds of chicken.

• 
• y=8x

• x=8y

• 

Tags

CCSS.7.RP.A.2C

What is the equation for a proportional relationship?

• y=kx

• x=y

• y=k+x

• k=x+y

Tags

CCSS.7.RP.A.2C

In the figure IG = 18. What is the length of IJ?

Tags

CCSS.7.RP.A.2C

What is the formula for a proportional relationship?

• y=kx

• y=k/x

• z=ykx

• y=ky

Tags

CCSS.7.RP.A.2C

Solve for x 

• x = 1/10
• x = 10
• x = 4
• x = 5

Tags

CCSS.7.RP.A.2C

Solve for n

12/6 = 4/n

• n = 2

• n = 3

• n = 4

• n = 5

Tags

CCSS.7.RP.A.2C

A store sells bows in packages. The table shows how the number of bows relates to the number of packages.  How many bows will be in 14 packages?

• 104
• 140
• 410
• 1400

Tags

CCSS.7.RP.A.2C

In the equation y = kx, what does the k represent?

• x-axis

• y-axis

• constant of proportionality

• I don't know because my teacher didn't stress it enough.

Tags

CCSS.7.RP.A.2C

Which equation helps you solve for k?

• k = x/y

• k = y/x

• k = y + x

• k = 2x

Tags

CCSS.7.RP.A.2C

Chloe makes a scale drawing of her school with a scale factor of 1 inch = 20 yards. Find the length of the soccer field depicted in the scale drawing, if the actual length of the field is 100 yards.

• 2000 inches

• 2 inches

• 5 inches

• 120 inches

Tags

CCSS.7.RP.A.2C