radicals
Quadratic functions
relations and functions
1st grade math
random
100

√x = 5

x= 25

100

x2+5x+6=0

x=−2,−3

100

What is a relation in math?

A set of ordered pairs

100

50+50

100

100

what sport uses a brown oval shaped ball?

football

200

√(x + 1) = 4

x= 15

200

y=x2+6x+8

-4,-2

200

What makes a relation a function?

Each input (x-value) has exactly one output (y-value).

200

3x10

30

200

what color is a basketball?

orange

300

√(2x + 3) = 7

x= 23

300

x2–3x–4=0

x=4,−1


300

Find the domain and range:
{(2,4),(3,5),(5,6)}\{(2, 4), (3, 5), (5, 6)\}{(2,4),(3,5),(5,6)}

{2, 3, 5}; Range: {4, 5, 6}

300

100+100

200

300

what disney movie has a lion?

The lion king

400

√(x + 4) = √(3x – 2)

x=3

400

y=x2+4x+3

-3,-1

400

: Does the graph of a circle represent a function?

No (a vertical line touches it twice)

400

200+200

400

400

what character is the snowman?

olaf

500

√(x² + 4x + 4) = x + 2


x = 0

500

y=x2–4

x-intercepts: (–2, 0) and (2, 0); vertex: (0, –4)

500

y=x−2

y-intercept: (0, –2); x-intercept: (2, 0)

500

400+400

800

500

Who is the most loved character from disney?

Mickey mouse