Answer:
0
Step-by-step explanation:
Answer:
y = 35 - 15x
Step-by-step explanation:
![3x + \frac{1}{5} y = 7 \\ 15x + y = 35 \\ y = 35 - 15x](https://tex.z-dn.net/?f=3x%20%2B%20%20%5Cfrac%7B1%7D%7B5%7D%20y%20%3D%207%20%5C%5C%2015x%20%2B%20y%20%3D%2035%20%5C%5C%20y%20%3D%2035%20-%2015x%20)
Question asked: You had $207, but you are spending $2 each day. Which algebraic expression describes this situation, where d represents the number of day?
My answer: -2d+207
Because u have $207 but u r spending $2 a day that is where the -2d comes in
Answer:
Part 1) The graph in the attached figure
Part 2) The equation of the line is ![y=-x+7](https://tex.z-dn.net/?f=y%3D-x%2B7)
Step-by-step explanation:
Part 1) we know that
To graph a line we need at least two points
we have
(5,2) and (0,7)
Plot the points
Connect then and join to graph the line
The graph in the attached figure
Part 2) Determine the equation of the line
Find the slope
Remember that the formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)
see the graph
The formula to calculate the slope between two points is equal to
![m=\frac{rise}{run}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7Brise%7D%7Brun%7D)
we have
![rise=-5\\run=5](https://tex.z-dn.net/?f=rise%3D-5%5C%5Crun%3D5)
substitute
![m=\frac{-5}{5}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-5%7D%7B5%7D)
![m=-1](https://tex.z-dn.net/?f=m%3D-1)
Is negative because is a a decreasing function
as the value of x increases, the value of y decreases
The equation of the line in slope intercept form is equal to
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
we have
![m=-1](https://tex.z-dn.net/?f=m%3D-1)
----> the y-intercept is given see the graph
substitute
![y=-x+7](https://tex.z-dn.net/?f=y%3D-x%2B7)
The answer is 1, because first you add 5h + 4h which is 9. Then you subtract 4h from 9h which is 5h. then it is a simple 2 step equation. After you have 5h − 2, do the inverse of -2 which is + 2, do it on the other side of the equal sign. Which makes 3+ 2, also makes 5. F inally divide 5 by 5 and you got your answer.
Hope this helped.