The y intercept is 0.5 because thats where the line starts.
the slope/gradient of the line is 1.5.
this would be written in the form: y=1.5x+0.5
If it was one year it would be 2200 and you just keep adding 200 for each year.
Answer:
4) d = 1
5) w = 11
6) q = 120
Step-by-step explanation:
<em>4)</em> ![9d - 5 = 4](https://tex.z-dn.net/?f=9d%20-%205%20%3D%204)
Adding 5 on both the sides ,
![= > 9d - 5 + 5 = 4 + 5](https://tex.z-dn.net/?f=%20%3D%20%20%3E%209d%20-%205%20%2B%205%20%3D%204%20%2B%205)
![= > 9d = 9](https://tex.z-dn.net/?f=%20%3D%20%20%3E%209d%20%3D%209)
Dividing both the sides by 9 ,
![= > \frac{9d}{9} = \frac{9}{9}](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20%20%5Cfrac%7B9d%7D%7B9%7D%20%20%3D%20%20%5Cfrac%7B9%7D%7B9%7D%20)
![= > d = 1](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20d%20%3D%201)
<em>5)</em> ![6 - 3w = - 27](https://tex.z-dn.net/?f=6%20-%203w%20%3D%20%20-%2027)
Substracting 6 from both the sides ,
![6 - 3w - 6 = - 27 - 6](https://tex.z-dn.net/?f=6%20%20-%203w%20-%206%20%3D%20%20-%2027%20-%206)
![= > - 3w = - 33](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20%20-%203w%20%3D%20%20-%2033)
Dividing both the sides by -3 ,
![= > \frac{ - 3w}{ - 3} = \frac{ - 33}{ - 3}](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20%20%5Cfrac%7B%20-%203w%7D%7B%20-%203%7D%20%20%3D%20%20%5Cfrac%7B%20-%2033%7D%7B%20-%203%7D%20)
![= > w = 11](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20w%20%3D%2011)
<em>6)</em> ![- 4 = \frac{q}{8} - 19](https://tex.z-dn.net/?f=%20-%204%20%3D%20%20%5Cfrac%7Bq%7D%7B8%7D%20%20-%2019)
Adding 19 on both the sides ,
![\frac{q}{8} - 19 + 19 = - 4 + 19](https://tex.z-dn.net/?f=%20%5Cfrac%7Bq%7D%7B8%7D%20%20-%2019%20%2B%2019%20%3D%20-%204%20%2B%2019)
![= > \frac{q}{8} = 15](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20%20%5Cfrac%7Bq%7D%7B8%7D%20%20%3D%2015)
Multiplying both the sides by 8 ,
![= > \frac{q}{8} \times 8 = 15 \times 8](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20%20%5Cfrac%7Bq%7D%7B8%7D%20%20%5Ctimes%208%20%3D%2015%20%5Ctimes%208)
![= > q = 120](https://tex.z-dn.net/?f=%20%3D%20%20%3E%20q%20%3D%20120)
Answer:
5.26 X 10^-3
Step-by-step explanation: