10. Quadratics

10.01 Key features of quadratic functions

10.02 Solving quadratic equations by factoring

10.03 Solving quadratic equations using square roots

Investigation: Deriving the quadratic formula

10.04 Solve quadratic equations using the quadratic formula

10.05 Graphing quadratic functions

10.06 Transformations of quadratics

10.07 Quadratics in factored form

10.09 Quadratic functions and technology

10.08 Quadratics in vertex form

10.10 Applications of quadratic functions

10.11 Comparing exponential and quadratic functions

10.12 Systems of linear and quadratic equations

United States of America GA

Algebra 1

10.03 Solving quadratic equations using square roots

Interactive practice questions

Is $y=-2$y=−2 a solution of $5y^2+4y=-12$5y2+4y=−12?

Yes

A

No

B

Easy

< 1min

Is $x=\frac{1}{4}$x=14 a solution of $48x^2+16x-7=0$48x2+16x−7=0?

Easy

< 1min

Is $x=\frac{8}{7}$x=87 a solution of $\left(7x-2\right)^2=37$(7x−2)2=37?

Easy

< 1min

Is $x=-\frac{3}{4}$x=−34 a solution of $20x^2=3-11x$20x2=3−11x?

Easy

1min

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