Linear Equations and Functions

A system of equations with no solution will have lines that...

• are the same

• cross in one place

• are parallel and never touch

The graph above represents the allowance that Stefin and Daniel receive every week. If the x-axis represents the number of weeks and the y-axis represents the earnings ($), what is the amount of earnings that both boys will have the same?

• $4

• $2

• $6

• $8

What is the slope of the line with the equation: y + 6x = 12

• 6

• 12

• -6

• -12

All of the x values or inputs are called what?

• Domain

• Range

• Relation

• Function

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

f(x) is the same thing as ______.

• y

• x

• input

• an equation

What is f(6) for the function f(x)=3x-8

• -8

• 10

• -144

• answer not here

Find the slope given the points (3,2) and (4,7).

• 4

• 5

• -5

• 1/5

If m=3 and b=6, what is the correct slope intercept equation?

• y=3-6

• y=3x-6

• y=3x+6

• y=6x+3

How many solutions?

• One Solution

• No solution

• Infinitely Many Solutions