Alg2_Assignment 2.4: Key Characteristics in Equation Form

Quadratic equations take the shape of a _______ when graphed.

• parabola

• straight line

• snaked line

• elliptical

Tags

CCSS.HSF-IF.C.7A

Identify the values of the coefficients and constant.

 $f\left(x\right)=4x^2-8x+12$  

•  $a=4x^{2\ \ \ }$      $b=-8x$      $c=12$  

•  $a=4$      $b=-8$      $c=12$  

•  $a=4$      $b=8$      $c=12$  

•  $a=-4$      $b=8$      $c=-12$  

Would the graph of the quadratic below open up or down?

 $f\left(x\right)=-3x^2+5x+8$  

• Up because a is positive

• Up because a is negative

• Down because a is positive

• Down because a is negative

Would the graph of the quadratic below open up or down?

 $f\left(x\right)=4x^2-8x+12$  

• Up because a is positive

• Up because a is negative

• Down because a is positive

• Down because a is negative

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

Use the picture to find  the vertex and axis of symmetry

•  Vertex (3,8) Axis x=3
• Vertex (3,8) Axis y=3
• Vertex (8,3) Axis x=3
• Vertex (8,3) Axis y=3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

What is the axis of symmetry of y=2x²-4x+9?

• x = 1
• x = -1
• x = -2
• x = 4

Tags

CCSS.HSA.REI.B.4

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4

Tags

CCSS.HSA.REI.B.4

Find the x-intercepts of y=x².

• (0,0)(1,0)
• (-1,0)(1,0)
• (0,0)
• (-4,0)(4,0)

Tags

CCSS.HSF-IF.C.7E

What's the y-intercept of y = 3x²- 6x + 4

• (4,0)
• (-4,0)
• (0,-4)
• (0,4)

Tags

CCSS.HSF-IF.C.7A