Answer:
y= -1x-6
Step-by-step explanation:
The equation would be y=mx+b
M= slope, and B=y-intercept
If you look at a graph and use the slope to get to the Y-intercept you'll see that it is -6, and so you would just plug that into the equation along with the slope :)
Answer:
The equation is 
Step-by-step explanation:
Linear function:
A linear function for the amount of money in an account after t days is given by:
In which A(0) is the initial value and m is the daily cost.
Your EZ Pass account begins with $80. It costs you $4/day.
This means that 
So
A. 3 times 10^4
90000000 divided by 3000 is 30000 which happens to be equal to 3 times 10^4
If you want to learn how to do this just take your whole number ex: 3 and put 10^6 and you will have 3 followed by 6 zeros. The ^ is just how many zeros will follow your whole number at first.
