We can consider that the runner did an acceleration of 0.8 m.s during the 10 seconds of difference.
We can deduce that the runner did an acceleration of 0.08 m.s every second during this time.
Answer:
[-3, 2]
Step-by-step explanation:
Plug in the x values into the equation and evaluate...
f(-10) = -10 + 7 = -3
f(-5) = -5 + 7 = 2
Since f(x) is a continuous line, the range with constantly increase as x increases, so we know that this is the range over that domain.
5% of 15 is 0.75
15 - 0.75 = 14.25
So it the sale price $14.25 ?