True or False? - A relation is a set of ordered pairs.
¿Verdadero o falso? - Una relación es un conjunto de pares ordenados.
True
Verdadero
State the domain of the function {(4,-2),(-1,1),(2,-3),(3,0)}
Domain: {-1,2,3,4}
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
Yes because the domain/x's do not repeat.
Create a table
y=4x+3
for the given domain {-2, -1, 0, 1}

Given
f(x)=-3x
evaluate
f(2)
f(2)=-3(2)
f(2)=-6
The set of first coordinates of a relation or a function.
El conjunto de las primeras coordenadas de una relación o una función.
Domain
Dominio
State the range of the function {(4,-2),(-1,1),(2,-3),(3,0)}
Range: {-3,-2,0,1}
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
What is NO because x repeats?
Create a table
y=1/2x-5
for the given domain {0, 2, 4, 6}

Evaluate
f(x)=2x+1
for
f(-2)
f(-2)=2(-2)+1
f(-2)=-4+1
f(-2)=-3
The set of second coordinates in a relation or a function.
El conjunto de las segundas coordenadas en una relación o una función.
Range
Rango
Find the domain and range of
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
Domain: {1,2}
Range: {4, 5, 6}?
Does this graph represent a function?
No, it does not pass the vertical line test.
Find the zero(s) of
f(x)=2x-6
algebraically.
0=2x-6
6=2x
x=3
Evaluate
f(x)=-3-x
for
f(6)
f(6)=-3-(6)
f(6)=-9
A relation that assigns exactly one value in the range to each value in the domain.
Una relación que asigna exactamente un valor del rango a cada valor del dominio.
Function
Función
Find the domain and range of the graph.

Domain: (-∞,∞)
Range: (-∞, 4]
Does the graph below represent a function?
No, it does not pass the vertical line test.
What is not a zero of the function
f(x)=x^3+3x^2-x-3
A) 1 B) -1 C) 3 D) -3
C) 3
If
h(x)=|5x-17|
find
h(3)
h(3)=|5(3)-17|
h(3)=|15-17|
h(3)=|-2|
h(3)=2
Define a zero, including the definition in both its algebraic and graphical forms.
Defina un cero, incluyendo su definición tanto en su forma algebraica como gráfica.
A zero is where f(x) = 0 and where the graph crosses the x-axis.
Un cero es un punto donde f(x) = 0 y donde la gráfica cruza el eje x.
Find the domain and range of the graph below.
Domain: (-∞, 3)
Range: (-∞, 6]
Draw an example of a continuous graph that represents a function.
Responses will vary.
Find the zero(s) of the function graphically.
f(x)=x^4-8x^3+5x^2+14x
x=-1,0,2,7
If
g(x)=3x-2
find
g(8)-g(-5)
g(8) - g(-5) = 39