1/2 = 2/4 = 3/6,4/8,5/10,6/12,7/14, etc.
Add 1 to the numerator. Add 2 to the denominator.
(5,465)(7,625)
slope(m) = (625 - 465) / (7 - 5) = 160/2 = 80
y = mx + b
slope(m) = 80
use either of ur points (5,465)...x = 5 and y = 465
now we sub and find b, the y int
465 = 80(5) + b
465 = 400 + b
465 - 400 = b
65 = b
equation is : y = 80x + 65...but we need it in standard form
y = 80x + 65
-80x + y = 65...multiply by -1 to make x positive
80x - y = -65 <== standard form
========================
function notation.....f(x) is the same as y
so y = 80x + 65 in function notation becomes f(x) = 80x + 65
=======================
x axis will be days rented
y axis will be total cost
to graph :
y = 80x + 65.....the slope here is 80...the y int is (0,65)
to find the x int, sub in 0 for y and solve for x
0 = 80x + 65
-80x = 65
x = - 65/80 = - 13/16....so ur x int is (-13/16,0)
and if u need to find more points on ur line....
80x - y = -65....sub in any number for x, and solve for y
Answer:
A. You earn $20 for washing 4 cars.
B.You washed 9 cars.
Step-by-step explanation:
<u>Answer A:</u>
First you have to divide 35 by 7 to figure out how much money you get per car.
You'd get $5
Then you have to multiply by 4 to figure out how much money you get for 4 cars.
<h3><em>
Answer: $20</em></h3>
<u>Answer B.</u>
You just have to divide 45 by 5 wich would get you 9.
<h3>
<em>Answer: 9 Cars</em></h3>
Answer:
I think you forgot a pic
Step-by-step explanation:
either add it in a comment or make a new question