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Laabri

8th Grade Math: Unit 4

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Last updated about 1 year ago
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1.

Unit 4 – Item 1

Looking at the graphs below, which graph has a solution of (0,4)?

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2.

Unit 4 – Item 2

Model the following systems of equations:

y = 2x + 4

y = 2x + 1

  • Klik Graph tab (Graph 1, Graph 2, ne nea ɛkeka ho) so ma graph biara a ɛsɛ sɛ wobɔ.
  • Klik graph no akyi na fa asɛm bi ka ho. Fa nsɛntitiriw abien ka ho na yɛ graph. Twe asɛm bi anaa kyerɛw x ne y coordinates na sesa ne gyinabea. Klik asɛm bi so na popa.
  • Sɛ wobɔ wo graph no wie a, wubetumi ahyɛ dashed line box no mu.

Unit 4 – Item 3

A farmer is distributing two types of produce: apples and oranges. Each box of apples is sold for $3, and each box of oranges is sold for $2. On a certain day, the farmer sold a total of 80 boxes of produce and made $190 from these sales.

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3.

Write a system of equations that represents the number of boxes of apples (x) and oranges (y) sold.

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4.

B. Determine the number of apples and oranges sold.

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Unit 4 – Item 4

Write a system of equations for the solution shown below.

Unit 4 - item 5

Avery was selling concessions at the basketball game. She is selling pizza by the slice for $3.50 and sports drinks for $2.00. She sold a total of 96 slices of pizza and sports drinks combined. Avery made a total of $300.

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6.

Define the variables you will use to write the systems of equations

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7.

Write and solve the systems of equations.

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8.

How many slices of pizza and sports drinks did she sell?

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9.

Unit 4 – Item 6

Describe and correct the error in solving the system of linear equations.

4x + y = 10

5x – 3y = 6

Step 1:

4x + y = 10

y = -4x + 10

Step 2:

4x + (-4x + 10) = 10

10 = 10

Unit 4 – Item 7

Use the two flyers to answer the following questions:

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Compare the slopes in each flyer. What does the slope mean in context?

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Compare the y-intercept in each flyer. What does the y-intercept mean in context?

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12.

How long can someone skate at both places and the price is the same?

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Unit 4 – Item 8

The farmers market sells strawberries and pineapples in a fruit basket. Create and solve the systems of equations from the table.

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13.

Write a system of equations that represent the cost of each fruit basket.

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14.

What is the cost of each fruit?

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