In linear models there is a constant additve rate of change. For example, in the equation y = mx + b, m is the constanta additivie rate of change.
In exponential models there is a constant multiplicative rate of change.
The function of the graph seems of the exponential type, so we can expect a constant multiplicative exponential rate.
We can test that using several pair of points.
The multiplicative rate of change is calcualted in this way:
[f(a) / f(b) ] / (a - b)
Use the points given in the graph: (2, 12.5) , (1, 5) , (0, 2) , (-1, 0.8)
[12.5 / 5] / (2 - 1) = 2.5
[5 / 2] / (1 - 0) = 2.5
[2 / 0.8] / (0 - (-1) ) = 2.5
Then, do doubt, the answer is 2.5
-151/120x -1 or 1\120 × (-151x -120)
Answer:
its D
Step-by-step explanation:
Did the test
Answer:
<u>500 washes</u>
Step-by-step explanation:
<u>Number of washes</u>
- Total volume / Volume used each time
- 5 L / 10 mL
But remember : 1 L = 1000 mL
- 5000 mL / 10 mL
- <u>500 washes</u>
