There is not enough information to answer :(
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
Where:
m: Is the slope
b: Is the cut-off point with the y axis
According to the data of the statement we have to:
![m = -2](https://tex.z-dn.net/?f=m%20%3D%20-2)
Then, the equation is of the form:
![y = -2x + b](https://tex.z-dn.net/?f=y%20%3D%20-2x%20%2B%20b)
We substitute the point
and find "b":
![-3 = -2 (-5) + b\\-3 = 10 + b\\-3-10 = b\\b = -13](https://tex.z-dn.net/?f=-3%20%3D%20-2%20%28-5%29%20%2B%20b%5C%5C-3%20%3D%2010%20%2B%20b%5C%5C-3-10%20%3D%20b%5C%5Cb%20%3D%20-13)
Finally, the equation is:
![y = -2x-13](https://tex.z-dn.net/?f=y%20%3D%20-2x-13)
To graph we place the points
and
on the coordinate axis and join the points by a line.
ANswer:
![y = -2x-13](https://tex.z-dn.net/?f=y%20%3D%20-2x-13)
The graphic is attached.
X = 40 min
y = 10 min
x = 40/60 h --> x = 4/6 h --> x = 2/3 h
y = 10/60 h --> y = 1/6 h
x + y = 2/3 - 1/6
x+y = 4/6 - 1/6
x+y = 3/6 h = 3*60'/6 = 3*10 = 30 min
Answer:
1 mile : 2 cm
Step-by-step explanation:
the ratio is 4.5 miles : 9 cm.
this can be simplified to 1:2.