characteristic quadratic functions/Factored form zeros

Go to desmos.com/calculator and graph the function $f\left(x\right)=\left(x-2\right)\left(x+3\right)$  to determine its y-intercept.  (Be sure to write it as an ordered pair.)

Tags

CCSS.HSF-IF.C.7A

Which of the following represent the y-intercept?  Select all that apply.

•  $\left(-1,0\right)$  

•  $\left(0,\ -3\right)$  

•  $\left(1,\ -4\right)$  

•  $\left(2,\ -3\right)$  

•  $\left(3,0\right)$  

Go to desmos.com/calculator and graph the function $f\left(x\right)=\left(x+5\right)\left(x-1\right)$  .  Which of the following statements are true?  Select all that apply.

• The roots are at  $\left(5,0\right)$  and  $\left(-1,0\right)$  .

• The line of symmetry is  $y=-2$  .

• The roots are at  $\left(-5,0\right)$  and  $\left(1,0\right)$  .

• The line of symmetry is  $x=-2$  .

Tags

CCSS.HSF-IF.C.7A

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5
• x = 5 or x = -3
• x = -5 or x = 3
• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

What type of functions is this?

• Linear

• Quadratic

• Exponential

• Other

What type of functions is this?

• Linear

• Quadratic

• Exponential

• Other

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

When did the rocket hit the ground?

• 0 seconds
• 4 seconds
• 8 seconds
• 10 seconds

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

Tags

CCSS.HSF-IF.C.7A