The rate of change of any given function is simply taken to be the 1st derivate of that function.We are given:y = 5 x + 25So the rate of change is simply, rate of change = dy / dxdy = 5 dxdy / dx = 5
So rate of change = 5
One day and 6 hours since one day is 24 hours 6 mores hours equals the 30 hours
If she can read 10 words in 1 second, you can multiply this amount by 60 to calculate how many words she can read in 60 seconds.
10 words * 60 = 600
She can read 600 words in 60 seconds.
The answer is 22 because you replace the x with 5 and do 5x 5 - 3
