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Biblioteka

Unit 7 Quiz System of Equations

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Posljednje ažuriranje 5 months ago
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Pitanje 1
1.

A system of equations is shown.

x + y =7

2x -y = -1

What is the solution?

Pitanje 2
2.

What is the solution to the system of equations below?

3x +4y = -2

2x - 4y = -8

Pitanje 3
3.

Is (3,8) a solution to this system of equations?

y = 7x + 8

y = x + 1

Pitanje 5
5.

Graph the system of equations to determine the POI/Solution.

y = x-5

2x + y = 4

  • Kliknite na karticu Grafikon (Grafikon 1, Grafikon 2 i tako dalje) za svaki grafikon koji trebate nacrtati.
  • Kliknite na pozadinu grafikona da biste dodali tačku. Dodajte dvije tačke da biste kreirali grafikon. Prevucite tačku ili unesite x i y koordinate da biste uredili njen položaj. Kliknite na tačku da biste je izbrisali.
  • Nakon što kreirate grafikon, možete označiti kućicu s isprekidanom linijom.
Pitanje 6
6.

After you have graphed two equations in a different problem. Refer to that graph when answering this question.

What is your POI for your graph?

Pitanje 7
7.

Solve the system of equations using the substitution method.

x - 5y = 1

-2x + 9y = -1

Show your work to justify your answer.

Pitanje 8
8.

Marcia went to the grocery store to buy different berries. She buys three containers of strawberries and one container of blueberries for $9.50. Jocelyn goes to the same grocery store and buys three containers of strawberries and 3 containers of blueberries for $13.50. How much do the strawberries and blueberries cost?

a. Create tape diagrams for the real-world problem.

b. Use your tape diagrams to answer the question above.