IM2 - Quadratics: Standard Form Revelations

What is the y-intercept?  $f\left(x\right)=x^2-3x+9$  

• (9, 0)

• (0, 9)

• (1, 0)

• (-3, 0)

• (0, -3)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $f\left(x\right)=-2x^2-x-5$  

• (-2, 0)

• (0, -2)

• (0, -1)

• (-5, 0)

• (0, -5)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $g\left(x\right)=-\frac{3}{5}x^2+2x-8$  

• (-3/5, 0)

• (0, 2)

• (0, -8)

• (-8, 0)

• (0, -3/5)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $f\left(x\right)=x^2$  

• (0, 0)

• (0, 1)

• (1, 0)

• Does not have a y-intercept

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $4x^2$  

• (4, 0)

• (0, 4)

• (0, 0)

• Does not have a y-intercept

• (1, 0)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $h\left(x\right)=-3x^2+2x$  

• (-3, 0)

• (0, 2)

• (2, 0)

• Does not have a y-intercept

• (0, 0)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $f\left(x\right)=8x^2+x-1$  

• (-1, 0)

• (0, -1)

• (1, 0)

• (0, 1)

• (1, -1)

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $g\left(x\right)=-\frac{4}{5}x^2-2x+2$  

• (-2, 0)

• (0, -2)

• (2, 0)

• (0, 2)

• (0, -4/5)

Tags

CCSS.HSF-IF.C.7A

Concavity:   $-0.1x^2-2.3x+1.4$ 

• Opens Up

• Opens Down

Tags

CCSS.HSF-IF.C.7A

Challenge!  What's the y-intercept?  $f\left(x\right)=\left(x-3\right)\left(x+4\right)$ 

• (0, 3)

• (0, 4-)

• (0, 12)

• (0, -12)

• Cannot be determined.

Tags

CCSS.HSF-IF.C.7A