Back to Solve linear-quadratic systems — Problem 2 · Task Set 43

HSA.REI.C.7 Tutor Intake — Linear-Quadratic Systems

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Grade 9·8 problems·~13 min·Common Core Math - HS Algebra·standard·hsa-rei-c-7

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Concepts

When solving a linear-quadratic system by substitution, which substitution
step is correct?

Substitute the quadratic equation's expression into the linear equation.

Substitute the linear equation's expression for $y$ (or $x$ ) into the quadratic equation.

Set the two equations equal to each other by multiplying them.

Add the two equations to eliminate one variable.