8-5 Vertex Form

If given the equation
y = 3(x + 5)² - 4,
what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which equation has a vertex of (-3, 4)?

• y = 2(x+3)² + 4
• y = (x+3)² - 4
• y = (x-3)² + 4
• y = 2(x - 3)² + 4

Tags

CCSS.8.F.A.1

CCSS.8.F.A.2

CCSS.8.G.A.3

What is the vertex of the following equation?
y=5(x-3)²+5

• (3,5)
• (-3,5)
• (3, -5)
• (-3,-5)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which equation is equivalent to  $f\left(x\right)=\left(x+4\right)^2+2$  

•  $f\left(x\right)=x+8x+18$  

•  $f\left(x\right)=x^2+4x+2$  

•  $f\left(x\right)=x^2+18$  

•  $f\left(x\right)=x^2+10$  

Which equation is equivalent to  $y=\left(x-1\right)^2-7$  

•  $y=x^2-2x-6$  

•  $y=x^2-x-7$  

•  $y=x^2-6$  

•  $y=x^2-x+7$  

Which equation is equivalent to  $g\left(x\right)=2\left(x+3\right)^2-5$  

•  $g\left(x\right)=2x^2+12x+13$  

•  $g\left(x\right)=2x^2+3x-5$  

•  $y=2x^2+6x-2$  

•  $y=x^2+6x+9$  

Which equation is equivalent to  $y=-3\left(x+5\right)^2-3$  

•  $y=-3x^2-30x-78$  

•  $y=-3x^2+5x-3$  

•  $y=-3x^2-10x+25$  

•  $y=-3x^2-25$  

Which equation is equivalent to  $y=2\left(x+1\right)^2+9$ ? 

•  $y=2x^2+4x+11$  

•  $y=2x^2+x+9$  

•  $y=2x^2-2x+7$  

•  $y=2x^2+5x+9$