Step-by-step explanation:
use trigonometry ratios
Phil ran 2 7/8 miles more than micheal
First set change the function f(x) to y so
that it would be

Then set y = 0

Then solve for x
X = - 3
To graph it, just plot the point (-3,0) on the x-axis
3. An aspirin weighs 0.018 ounces.
1 gram = 0.035 ounces
4. An aspirin is 500 milligrams.
1,000 milligrams = 1 gram