9514 1404 393
Answer:
-4
Step-by-step explanation:
The point (x, y) = (0, 0) is on the line, so it represents a <em>proportional relation</em>. Any ratio of y to x will be the slope. The choice that makes this computation easiest is ...
x = 1, y = -4
y/x = -4/1 = -4
The slope of the line is -4.
Answer:1/12 or 8.3
Step-by-step explanation:
Answer:
In traffic, she drove for 3 hours
and After the traffic cleared she drove for 2 hours.
Explanation:
Given that the road trip was 136 miles;
![d=136](https://tex.z-dn.net/?f=d%3D136)
The first part of the trip there was lots of traffic, she only averaged 16 mph;
![v_1=16](https://tex.z-dn.net/?f=v_1%3D16)
The second part of the trip there was no traffic so she could drive 44 mph;
![v_2=44](https://tex.z-dn.net/?f=v_2%3D44)
She traveled for a total of 5 hours;
![t=5](https://tex.z-dn.net/?f=t%3D5)
let x represent the time in traffic when she traveled at 16 mph
![t_1=x](https://tex.z-dn.net/?f=t_1%3Dx)
the time the traffic is clear would be;
![t_2=t-t_1=5-x](https://tex.z-dn.net/?f=t_2%3Dt-t_1%3D5-x)
Recall that distance equals speed multiply by time;
![d=v_1t_1_{}_{}^{}+v_2t_2](https://tex.z-dn.net/?f=d%3Dv_1t_1_%7B%7D_%7B%7D%5E%7B%7D%2Bv_2t_2)
substituting the values;
![136=16x+44(5-x)](https://tex.z-dn.net/?f=136%3D16x%2B44%285-x%29)
solving for x;
![\begin{gathered} 136=16x+220-44x \\ 44x-16x=220-136 \\ 28x=84 \\ x=\frac{84}{28} \\ x=3 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20136%3D16x%2B220-44x%20%5C%5C%2044x-16x%3D220-136%20%5C%5C%2028x%3D84%20%5C%5C%20x%3D%5Cfrac%7B84%7D%7B28%7D%20%5C%5C%20x%3D3%20%5Cend%7Bgathered%7D)
So;
![\begin{gathered} t_1=3\text{ hours} \\ t_2=5-x=5-3=2 \\ t_2=2\text{ hours} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t_1%3D3%5Ctext%7B%20hours%7D%20%5C%5C%20t_2%3D5-x%3D5-3%3D2%20%5C%5C%20t_2%3D2%5Ctext%7B%20hours%7D%20%5Cend%7Bgathered%7D)
Therefore, In traffic, she drove for 3 hours
and After the traffic cleared she drove for 2 hours.
Answer:what are the choiese
Step-by-step explanation: