Respuesta :
Answer:
Step-by-step explanation:
y = 5x + 20
Start at (0, 20).
Then plot a point at (1, 25).
The line should be going through points (2, 30), (3, 35), (4, 40), (5, 45), etc.
For every time the x number goes up, the y number goes up 5 times for the 5%.
Answer:
Given,
The original percentage of battery = 20 %,
Also, Every minute that passes, an additional 5%,
So, the increment in percentage after x minutes = 5x percentage
Thus, the final battery after x minutes = ( 20 + 5x ) %
Let y represents the total percentage of battery after x minutes,
⇒ y = 20 + 5x
Which is the required function that shows the given situation.
For graphing,
y = 20 + 5x is a line having x-intercept = (-4,0)
And, y-intercept = (0,20)
Also, battery's capacity and time can not be negative,
⇒ x ≥ 0 , y ≥ 0
Read more on Brainly.com - https://brainly.com/question/9880903#readmore
Step-by-step explanation: