Rate of Change/Slope
Comparing Proportions
Slopes and Triangles
Real-World Problems
Similar Triangles
100

What equation do we use to find the rate-of-change of a proportion?

m=y/x

100

Two different proportional relationships are shown below. Which relationship has a higher unit rate?

y=1/2x

The graph

100

What is the slope represented by the graphed triangle?

m=-3/5

100

Keynari earns $14 per hour babysitting.

The equation  y=12.5x represents the money, y, that Genesis earns money after x hours of babysitting.

Which student makes more money while babysitting?

Keynari makes more money while babysitting.

100

Two triangles are similar if their corresponding angles are _____.

What is congruent?

200

The table below models the relationship between the cost in dollars, y, for x tacos in an order at a local shop.

What is the correct interpretation of the unit rate for this situation (including units)?

The unit rate is $3 per taco

200

Which proportion has the highest unit rate in dollars per pound?

a) Lena sells 3 pounds of coffee for $18.

b) Adlai sells 2 pounds of coffee for $13.

c) Ty'asia sells 5 pounds of coffee for $25.

(b); Adlai has the highest unit rate for dollars per pound.

200

What is the (simplified) slope of the following triangle?

m=2/3

200

Tyree sells 12 cookies for $3 and 20 cookies for $5. Write an equation to calculate the price, y, for x number of cookies.

y=0.25x

OR

y/x=0.25

200

π›₯𝐹𝐺𝐻 and π›₯π‘‹π‘Œπ‘ are similar. If π‘šβˆ πΉ=90Β° and π‘šβˆ π‘Œ=25Β°, then this is the π‘šβˆ π‘.

What is 65Β°?

300

Find the slope of the graphed line.

Slope = -2

300

What is the rate of change for the relationship with the higher rate of change?

      

The table of values has a rate of change of 1.

300

In the graph below, EDF is similar to BAC.

Which proportion can be used to show that the slopes of ED and BA are the same?

(EF)/(FD)=(BC)/(CA)

300

Carol collected information from two dirt hauling companies for her construction projfect. Dirt-r-Us gives its prices in a table. Mole Movers Service gives it prices in a graph. Which company has a better price (lower unit rate) for dollars per cubic yard?

Dirt-r-Us has a better price.

300

If  triangleDEF and  triangleRST are similar, then this is the value of  angleR .

What is 35o?

400

Of the following three triangles, only this one is NOT similar to the other two.

What is  triangleABC and  triangle XYZ ?

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