Functions
Calculating Slope
Linear Equations
Standard Form to Slope Intercept
Systems of Equations
100
Is this graph a function?
Yes- What is a function?
100
Using the points (1,-3) to (3,0), what is the slope?
what is 3/2?
100
Using the points (3,2) (4,1) , what is the slope of this line?
-1/1
100
6x+5y=-15
y=-6/5x-3
100
How many solutions does this system of equations have?
y=5x+12
y=5x+18
no solution
200
What is the definition of a function?
What is one output for every input?
200
What is the rise/run?
What is 2/1?
200
In the linear equation y=mx+b, what does m mean and what does b mean?
m=slope
b= y-intercept
200
8x-4y=32
y=2x-8
200
Solve this system of equations using substitution:
y=-3x
y=8x-22
x=2
y=-6
300
The average income in the US is $35,256 with only a high school degree (this is your y-intercept). Your income increases at a rate of .15 dollars for every year in higher education.
a. Write a linear equation to describe the relationship between average income and education
i= .15e+35,256
i= income
e=education
300
14x-7y=-7
y=2x+1
300
The sum of two numbers is 79 and their difference is 23. What are the two numbers?
x=51
y=28