Answer:
if f(x) = 3x+4, the rate of change is 4.
if f(x) = 2x+7, the rate of change is 2.
Step-by-step explanation:
We know that the average rate of change over the interval x=0 to x=8 is:
(f(x2) - f(x1))/x2-x1
Where:
x2 = 8
x1 = 0
if f(x) = 3x+4
so f(8)=3(8)+4 = 28
f(0)=3(0)+4 = 4
Then: (f(x2) - f(x1))/x2-x1 = (28 - 4)/8-0 = 24/8 = 3
On the other hand, if f(x) = 2x+7
f(8) = 2(8)+7 = 23
f(0) = 2(0)+7 = 7
Then: (f(x2) - f(x1))/x2-x1 = Then: 23 - 7/8-0 = 16/8 = 2
Part be just and all the cost and c i cant do good luck hope that helps
Answer: 24 laps
Step-by-step explanation: it’s a ratio, so a fraction. 4/6 = x/36
cross multiply and get 6x = 144
divide by 6 and get x = 24
Answer:
The best estimate for the number of hours the family drove is 28.8 Hours.
Step-by-step explanation:
The distance Jarrod's family drove is 1778 miles and their average speed was 61.7 miles/hour, and we need the best estimate for the number of hours the family drove. For this we use the distance formula

and use solve for t:

Thus the best estimate for the hours driven is 28.8 hours.
<em>It is only an estimate because the speed given is the average speed.</em>