Quadratics everything we know so far

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

Label the key features of this graph

a

c

Y-intercept

Vertex

Solution

axis of symmetry

Label the key features of this graph

d

e

Vertex

zero

X-intercept

Y-intercept

axis of symmetry

Label the key features of this graph

d

b

X-intercept

axis of symmetry

zero

Vertex

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Which statement about the graph is FALSE?

• The vertex is (-3, 18)

• The vertex is a maximum

• The y-intercept is y = 0

• The axis of symmetry is y = -3

Define X-intercept

• The highest or lowest point on the graph

• Where the parabola touches or intersects the x-axis

• Where the parabola touches or intersects the y-axis

• A line that divides the graph into two equal parts. i.e. cuts the graph in half

Answer explanation

This is the definition of x-intercept

Label the Graph with the Correct Key Features.

1. ​ (a)   2. ​ (b)   ​

3. ​ (c)   ​ 4. ​ (d)  

• Y-Intercept
• Zero
• Vertex

.How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

What is the axis of symmetry? Type your answer in the form "x=___"