Answer:
Step-by-step explanation:
What you would want to do is add the $15.75 you would want to add it 5 times
Y - y1 = m(x - x1)
Where y1 is the y-value of the point, x1 is the x-value and 'm' is the slope.
y - 8 = -1.2(x - 7)
Distribute -1.2 into the parenthesis:
y - 8 = -1.2x + 8.4
Add 8 to both sides:
y = -1.2x + 16.4
He needs to save 62.5 each week in order to buy a new cell phone
Answer: 0.4 meters per hour.
Step-by-step explanation:
The rate of change of distance with respect to time is known as speed.
Formula :![\text{Rate of change}=\dfrac{\text{Change in position}}{\text{Change in time}}](https://tex.z-dn.net/?f=%5Ctext%7BRate%20of%20change%7D%3D%5Cdfrac%7B%5Ctext%7BChange%20in%20position%7D%7D%7B%5Ctext%7BChange%20in%20time%7D%7D)
Given : It's raining outside, and after 1 hour of rain, the water level in Jake's pond is 2 meters. After 3 hours, the water level is 2.8 meters.
i.e. Change in position= 2.8-2=0.8 meters
Change in time = 3-1=2 hours
i.e. ![\text{Rate of change}=\dfrac{0.8}{2}=0.4](https://tex.z-dn.net/?f=%5Ctext%7BRate%20of%20change%7D%3D%5Cdfrac%7B0.8%7D%7B2%7D%3D0.4)
Hence, the rate of change =0.4 meters per hour.