i-Ready: Lesson 13-3 (pg. 295-296)

How would the graph in the Example change if Jades reads 5 pages every 3 minutes instead of 4 pages every 3 minutes?

• The x-coordinates of the points would stay the same, but y-coordinates would increase.

• The y-coordinates of the points would stay the same, but x-coordinates would increase.

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CCSS.6.EE.C.9

CCSS.6.NS.C.8

CCSS.6.RP.A.2

CCSS.6.RP.A.3

The point (7, 8) in the coordinate plane represents a ratio. Adela claims that you can find an equivalent ratio by adding the same number to both coordinates of the point. Is Adela correct?

• Yes, she is correct because both points would increase at the same rate.

• No, you would need to add 7 to the first coordinate, and 8 to the second coordinate.

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CCSS.6.RP.A.1

CCSS.6.RP.A.3

Iman and Avi are bringing napkins to a back-to-school picnic. They decide to bring 35 napkins for every 10 people who plan to attend. The point on the graph represents this ratio.

Select a point that represents an equivalent ratio.

• (70, 20)

• (20, 70)

• (35, 45)

• (60, 75)

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

What do the coordinates of the point that you chose in question 3a represent in this situation?

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CCSS.6.G.A.3

CCSS.6.NS.C.8

Allen is knitting a scarf for his sister. He uses 4 yd. of black yarn for every 6 yd. of yellow yarn.

a

b

c

18

20

3

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

An aquarium needs to hold 9 gal of water for every 3 miniature goldfish. The point on the graph represents this ratio relationship. Which ordered pairs represent equivalent ratios that would also be on the graph. Select all that apply.

• (1, 3)

• (3, 1)

• (12, 6)

• (15, 9)

• (18, 6)

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Using your notes, Label all the parts of the Coordinate Plane

a

b

c

d

e

f

g

Origin (0,0)

y-axis

(4,5)

x-axis

Coordinate Plane

(2,2)

(1,6)

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CCSS.4.G.A.1