An unknown quantity is called a variable.
We typically use letters (ie: x) to represent these unknown values.
9.4 is the distance coming back with pythagorean theorem
add the original 13 miles
22.4 miles
A, first find the slope of the line shown, which is 2x+1
slope is rise/over run, with the y-intercept being on 1
When looking at rate of change, it's really just telling you to look at the slope and how steep it is. The more steeper it is, the higher the rate of change. (as close as it is to being a vertical line). Since the slope here is 2. Look for one that has a slope greater than 2, which is 3. Therefore the answer
A. 3x-1
Hope this helps!
Answer:
a average person only types 38 to 40 words per min
Step-by-step explanation:
We have the following function:
f(t) = −16t2 + 34t + 546
By definition, the average rate of change is:
Avr = (f (t2) - f (t1)) / (t2 - t1)
We have then:
For t1 = 5:
f (5) = -16*(5)^2 + 34*(5) + 546
f (5) = 316
For t2 = 5:
f (7) = -16*(7)^2 + 34*(7) + 546
f (7) = 0
Substituting values:
Avr = (0 - 316) / (7 - 5)
Avr = -158
Answer:
The average rate of change of f (t) from t = 5 seconds to t = 7 seconds is -158 feet per second.