Solving Quadratics: x-intercepts/solutions/zeros/roots

Find the zeros of the function:

• $\left\{1,-3\right\}$

• $\left\{-1,3\right\}$

• $\left\{0,-3\right\}$

• $\left\{2,-3\right\}$

Find the real roots:  $x^2-2x-35=0$  

•  $\left\{-2,-35\right\}$  

•  $\left\{0,-35\right\}$  

•  $\left\{-7,5\right\}$  

•  $\left\{7,-5\right\}$  

The solutions to a quadratic are 5 & 8. What are the factors of the quadratic?

• $\left(x+8\right)\left(x+5\right)$

• $\left(x-8\right)\left(x-5\right)$

• $\left(x+5\right)\left(x-8\right)$

• $\left(x-5\right)\left(x+8\right)$

Find the zeros of the function:  $f\left(x\right)=x^2-81$  

•  $\left\{0,-81\right\}$  

•  $\left\{-9,-9\right\}$  

•  $\left\{9,9\right\}$  

•  $\left\{\left(9,-9\right)\right\}$  

Find the roots of the equation:  $x^2+x-56=0$  

•  $\left\{-8,7\right\}$  

•  $\left\{-7,8\right\}$  

•  $\left\{0,-56\right\}$  

•  $\left\{-1,15\right\}$  

Find the solutions to the quadratic:

• $\left\{4,0\right\}$

• $\left\{4,-1\right\}$

• $\left\{3,5\right\}$

• $\left\{-3,-5\right\}$

The term "solutions" is the same as

• y-intercept

• roots

• x-intercepts

• vertex

• zeros

Find the zeros of the function:  $f\left(x\right)=\left(x-11\right)\left(x+4\right)$  

•  $\left\{0,-44\right\}$  

•  $\left\{-7,4\right\}$  

•  $\left\{-11,4\right\}$  

•  $\left\{11,-4\right\}$  

What are the factors of the quadratic?

• $\left(x-2\right)\left(x+8\right)$

• $\left(x+2\right)\left(x-8\right)$

• $\left(x-6\right)\left(x+2\right)$

• $\left(x+6\right)\left(x-2\right)$

The solutions to a quadratic are 0 & -8. What is the equation of the quadratic?

• $x\left(x-8\right)=0$

• $x\left(x+8\right)=0$

• $\left(x-4\right)\left(x+8\right)=0$

• $\left(x-8\right)\left(x+1\right)=0$