Mathematics Grade 8 15 min

Solve a system of equations by graphing

Solve a system of equations by graphing

What you'll learn

  • Identify prime numbers from a set of whole numbers between 1 and 100 with 80% accuracy.
  • Explain the difference between prime and composite numbers using at least two examples of each in their own words.
  • Determine whether a given number between 1 and 50 is prime or composite by listing all of its factors correctly.
  • Apply the divisibility rules for 2, 3, 5, and 10 to efficiently determine if a number (up to 100) is composite.

Tutorial Preview

1

Solve by graphing: y = x + 1 and y = -x + 3

2

Solve by graphing: y = 2x and x + y = 3

3

Solve by graphing: y = 2x + 1 and y = 2x - 2

Sample Practice Questions

Easy
Find the solution to the system by graphing: y = x + 2 and y = -x + 4
0.(1, 3)
1.(3, 1)
2.(2, 2)
3.No sol.
Easy
Find the solution to the system by graphing: y = 2x and y = x + 1
0.(2, 1)
1.(1, 2)
2.(0, 0)
3.Infinite
Easy
Find the solution to the system by graphing: y = -x and y = x - 2
0.(1, -1)
1.(-1, 1)
2.(2, 0)
3.No sol.

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Frequently asked questions

What grade level is "Solve a system of equations by graphing"?

Solve a system of equations by graphing is a Grade 8 Mathematics lesson on ExcelOS.

What will I learn in Solve a system of equations by graphing?

You'll be able to: Identify prime numbers from a set of whole numbers between 1 and 100 with 80% accuracy; Explain the difference between prime and composite numbers using at least two examples of each in their own words; Determine whether a given….

Is "Solve a system of equations by graphing" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Solve a system of equations by graphing?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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