Given :
When price is $2 dollars he sells 2400 units .
When price is $8 dollars he sells 600 units .
To Find :
If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.
Solution :
Two points are given :


Now , slope is given by :

Now , the equation of line containing these two points and slope -300 is :

Therefore , equation for the demand curve is
.
Hence , this is the required solution .
Answer:
(-5,8) and (-3,-8)
is
y=-8x-32
Step-by-step explanation:
Answer:
24.5
Step-by-step explanation:
Answer:P(N|V) = 0.62
P(N)=0.59
Not independent
Step-by-step explanation:
Answer : The equation could you use to find p is, 
Step-by-step explanation :
Let the cost of 1 pen be, 'x'
and the cost of 1 pencil is, 'p'
As we are given that total cost of 1 pen and 1 pencil is $2.10. The equation will be:
............(1)
And we have also given that the pen costs twice as much as a pencil. The equation will be:
............(2)
Now put the equation 2 in equation 1, we get:


Thus, the equation could you use to find p is, 