radicals
√x = 5
x= 25
x2+5x+6=0
x=−2,−3
What is a relation in math?
A set of ordered pairs
50+50
100
what sport uses a brown oval shaped ball?
football
√(x + 1) = 4
x= 15
y=x2+6x+8
-4,-2
What makes a relation a function?
Each input (x-value) has exactly one output (y-value).
3x10
30
what color is a basketball?
orange
√(2x + 3) = 7
x= 23
x2–3x–4=0
x=4,−1
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}
100+100
200
what disney movie has a lion?
The lion king
√(x + 4) = √(3x – 2)
x=3
y=x2+4x+3
-3,-1
: Does the graph of a circle represent a function?
No (a vertical line touches it twice)
200+200
400
what character is the snowman?
olaf
√(x² + 4x + 4) = x + 2
x = 0
y=x2–4
x-intercepts: (–2, 0) and (2, 0); vertex: (0, –4)
y=x−2
y-intercept: (0, –2); x-intercept: (2, 0)
400+400
800
Who is the most loved character from disney?
Mickey mouse