Simply plug in the value for x.
If x is equal to -18, then plug in -18 for x.
Example:
f(x) = 15 + x/5.
f(5) = 15 + 5/5.
Then solve the equation.
A function is just something that receives some value and then barfs a value out. This is an IO relationship. (Input/Output).
Answer:
Step-by-step explanation:
The modelled equation, P = 20n - 1200 is written in the slope intercept form. The slope of the line is 20. The line cuts the vertical axis at - 1200
a) the p intercept is - 1200(cost of production)
b) at the p intercept, the number,
n = 0. It means that no watches are sold. Therefore,
If the company sells 0 watches, it will lose $1200
c) the n intercept is the point where the line cuts the x axis.
At the n intercept, P = 0
0 = 20n - 1200
20n = 1200
n = 1200/20
n = 60
d) if the company sells 60 watches, it will lose $0
Distance1 ÷ (Jaime's velocity + wind velocity) =
Distance2 ÷ (<span>Jaime's velocity - wind velocity)</span>
57 / (Jaime's velocity + 4) = 33 / (<span>Jaime's velocity -4)
</span>
57 / 33 = (Jaime's velocity + 4) / (Jaime's velocity - 4)
(57 * -4) +57 * (Jaime's velocity) = (33 * 4) +33 * (Jaime's velocity)
-228 + 57 JV = 132 + 33 JV
24 JV = 360
Jaime's velocity = 15
Source
http://www.1728.org/veloccal.htm
(see Problem E)
3 1/9 = 3 4/36
2 1/4 = 2 9/36
3 4/36 + 2 9/36 = 5 13/36
