Answer:

Step-by-step explanation:
The average speed in function of the temperature:

The distance in function of the average speed:

x and S are the same
![D(t)=0.5*[6 \frac{miles}{hour} +0.1*\frac{miles}{hour*F}(80F-t)]](https://tex.z-dn.net/?f=D%28t%29%3D0.5%2A%5B6%20%5Cfrac%7Bmiles%7D%7Bhour%7D%20%2B0.1%2A%5Cfrac%7Bmiles%7D%7Bhour%2AF%7D%2880F-t%29%5D)

Answer:
Hello,
I am not sure if you are still having an issue with this problem but for future reference for you or anyone else the answer is
d. Each vertical line drawn through the graph will intersect a function in only one location.
I thought of it this way:
"Each vertical line" which tells me only one line per "one location" now I could be completely off but this was just my logic and it helped me personally.
The slope is going to be in y=mx+b form...
You are going to subtract 3x from both sides...
than your equation is going to be 4y=24-3x
than you have to divide EVERYTHING by 4...
so your answer is y=6-3/4x
Answer:
7 cm
Step-by-step explanation:
The two triangles are similar, so you can set up a proportion where (36/6) = (42/x). When you solve for x, you get seven.
Solution :
Let, equation of line is y = mx + c .
Here, m is the slope of the line and c is the y-intercept .
Putting point ( -6, -10 ) in above equation, we get :
-10 = -6m + c ...1)
Also, putting point ( -3, -8 ) in above equation, we get :
-8 = -3m + c ...2)
Solving equation, 1) and 2) we get :
3m = 2
and
Therefore, y-intercept is -6 .