Answer:
Option A.
Step-by-step explanation:
Based on the information provided on the question
the function used to model Tony's run is:
f(x) = -250*x + 5000
This means that after x = 20 minutes, Tony will arrive to the finish line
f(20) = -250*(20) + 5000 = -5000 + 5000 = 0
The function is always decreasing, because we are dealing with a line with negative slope.
Option A.
Positive infinity and negative infinity
Multiply both sides by 3 to get:
3r = sqrt(A)
Square both sides:
9r^2 = A
Make an equation.
Also, convert 3 weeks into days ⇒ 3 · 7 = 21 days.
x + 2x + 4x = 21
x is Jared.
2x is Max (because half of 4 is 2).
4x is Wesley.
Now solve the equation.
7x = 21
x = 3
Jared = x
Max = 2x
Wesley = 4x
Jared = 3 days
Max = 2(3) = 6 days
Wesley = 4(3) = 12 days
Answer:
Graph the line using the slop and y-intercept, or two points.
Slope: 1
y-intercept: -2
x: 0, 0
y: -2, -2
(Sorry is this isn't the answer you are looking for)
