Graphing Quadratics Warm Up Quiz

What is the y-intercept of the equation

y = 2x²+8x+3

• (0,3)

• (3,0)

• (0,2)

• y=8

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

Tags

CCSS.HSF-IF.C.7A

Which equation below is a quadratic?

• y=9x+5

• y=3x²-6

• y=5x³+6

• x=3^x

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What is the green dot on the parabola called?

• maximum
• minumum
• roots
• zeros

The standard form of a quadratic function is

• ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

If a is negative in the function, which way does the parabola

• up

• down

• left

• right

In order to graph a quadratic equation in standard form, the first two steps are to use the equation _____ to find the axis of symmetry, and then you can plug that value back into the equation to find the _____.

• -b/2a, vertex

• (x-h)^2, y-intercept

• (x-r1), solution

• ax^2, vertex

Tags

CCSS.HSF-IF.C.7A