Solving a System of Equations by Substituting

Solving a System of Equations by Substituting

Explore how substituting one equation into another can be used to find the solution to a system of equations.


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Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Açık-uçlu soru 1

How does the degree of the equations influence the number of possible solutions to a system?

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Açık-uçlu soru 2

The graph of the quadratic equation is a parabola, and the graph of the linear equation is a line. What do the solutions of the system represent graphically?

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Açık-uçlu soru 3

Why can you solve a system of equations by substituting one equation into another?

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Açık-uçlu soru 4

Dakota says that if a linear equation is written in terms of , then they can solve the system by substituting into the other equation for . Do you agree? Why or why not?

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Açık-uçlu soru 5

What values for would you find if you replaced the -values into the quadratic equation instead of the linear one?

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Açık-uçlu soru 6

Why do you think that in the examples shown, the -values were replaced into the linear equation, instead of the quadratic one?

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