Graphing Quadratic Functions-AOS, Vertex, Y-Intercept, Zero

What is the vertex of:  $f\left(x\right)=x^2+7x-8$  

•  $\left(-\frac{7}{2},-\frac{81}{4}\right)$  

•  $\left(-\frac{81}{4},\ -\frac{7}{2}\right)$  

•  $\left(-\frac{2}{7},-\frac{81}{4}\right)$  

•  $\left(-\frac{2}{7},-\frac{4}{81_{ }}\right)$  

How do you find the axis of symmetry?

• Use $-\frac{b}{2}$

• Use $\frac{b}{2}$

• Use $\frac{b}{2a}$

• Use $-\frac{b}{2a}$

Find the vertex of the equtaion:  $f\left(x\right)=2x^2+4x-3$  

• (1,5)

• (-1,-5)

• (5,-1)

• (5,1)

Does the function  $f\left(x\right)=-3x^2+2x-5$  have a maximum or minimum?

• maximum

• minimum

• can't tell from the equation

Tags

CCSS.HSF-IF.C.7A

Find the y-intercept of:  $f\left(x\right)=2x^2+8x-5$  

• 8

• 2

• -5

• 1

Tags

CCSS.HSF-IF.C.7A

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

Tags

CCSS.HSA.REI.B.4

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7A

Find the y-intercept y = x² - 6x + 5

• (0, 8)

• (0, - 6)

• (5, 0)

• (0, 5)

Tags

CCSS.HSF-IF.C.7A

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down
• Neither; it opens to the right.
• Neither; it opens to the left.

Tags

CCSS.HSF-IF.C.7A