Algebra

 $x^2+5x+6=0$  Solve this equation.

•  $x=-3,\ -2$  

•  $x=3,\ 2$  

•  $x=-6,\ 1$  

•  $x=6,\ -1$  

 $\frac{2}{3}x^2+\frac{1}{3}x-\frac{1}{3}=0$  Solve this equation.

•  $x=1,\ -\frac{1}{2}$  

•  $x=-1,\ -\frac{1}{2}$  

•  $x=-1,\ \frac{1}{2}$  

•  $x=1,\ \frac{1}{2}$  

 $4x^2-17x+13=0$  Solve this equation.

•  $x=\frac{13}{4},\ 1$  

•  $x=\frac{15}{4},\ 1$  

•  $x=\frac{13}{4},\ -1$  

•  $x=\frac{15}{4},\ -1$  

 $2x^2-11x-9=0$  Solve this equation (surd)

•  $x=\frac{11\pm\sqrt{193}}{4}$  

•  $x=\frac{-11\pm\sqrt{193}}{4}$  

•  $x=\frac{11\pm2\sqrt{3}}{4}$  

•  $x=\frac{-11\pm2\sqrt{3}}{4}$  

 $5x^2-14x-9=0$  Solve this equation (1d.p.)

•  $x=\ -3.3,\ 0.5$  

•  $x=\ -3.3,\ -0.5$  

•  $x=3.3,\ -0.5$  

•  $x=3.3,\ 0.5$  

 $3x=20-8x^2$  Solve this equation (3 d.p.)

•  $x=-1.405,\ -1.780$  

•  $x=1.405,\ -1.780$  

•  $x=1.405,\ 1.780$  

•  $x=-1.405,\ 1.708$  

Form a quadratic equation from the roots:

 $x=-5,\ -4$  

•  $x^2-9x-20=0$  

•  $x^2+9x-20=0$  

•  $x^2-9x+20=0$  

•  $x^2+9x+20=0$  

A frog is sitting on the ground when he is scared by a big dog. His movement is modeled by the equation h = -6t² + 6t where h is the frog's height at any given time, t . How many seconds until the frog is back on the ground?

• 0.5 seconds

• 1 second

• 1.5 seconds

• 2 seconds

• 3 seconds

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Your nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air. The equation

h = -2t² + 7t + 4 models the toy's height, h, from the ground at t seconds after he threw it. How high is the toy after 1 second?

• 2

• 4

• 9

• 10

• 15

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

If you square 5 more than a positive number, the result is 88 more than 12 times the number.  Find the numbers.

• -9, 7
• √75
• 9, -7
• 15, -5

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.1