Divide total price by gallons:
82.15 / 31 = 2.65 for 1 gallon
I=prt.....
i=5000*10*0.03=1500
5000+1500=6500
Semiannual means there will be two total periods in a year. Divide ten percent by two to get the interest rate per period. Then multiple by 1+i twice
Answer:
point-slope form
(standard form)
Let me know if you prefer another form.
Step-by-step explanation:
The slope of a line can be found using
provided you are given two points on the line.
We are.
Now you can use that formula. But I really love to just line up the points vertically then subtract them vertically then put 2nd difference over 1st difference.
(4/5 , 1/5)
-( 1/2 , 3/2)
-----------------
3/10 -13/10
2nd/1st =
is our slope.
So the following is point-slope form for a linear equaiton:
Plug in a point
.
This gives:
I'm going to distribute:

Now I don't like these fractions so I'm going to multiply both sides by the least common multiply of 2,3, and 6 which is 6:

Add 26x on both sides:

Add 9 on both sides:
This is actually standard form of a line.
It can be simplified though.
Divide both sides by 2:
(standard form)
A B D I’m pretty sure. Median is 3 or more and range just doesn’t make sense for 2 numbers