Graph two equations

george43

New member
Joined
Sep 4, 2011
Messages
6
I have these two equations:

The demand for coffee is given by the following equation, where QD stands for the quantity demanded and P stands for price.

QD = 100 - 4P

The supply of coffee is given by the following equation, where QS stands for the quantity supplied and P stands for price.

QS = 10 + 2P

I need to graph with the following instructions:
Select the tool "Demand" to plot the demand curve such that the endpoints touch each axis (where P = 0 and Q = 0). Select the tool "Supply" to plot the supply curve using the vertical intercept for one endpoint and the other point located at a value of Q = 100.

What I understand from the Demand is that they want me to plug the values when P=0 and when Q=0

I took each equation and plug in 0. For Q=100-4P I got 100 (100,0). Then when Q=0 I got (0,25)

For Supply the y-intercept would be (0,10) and then took Q=10+2P and got P=45 (100, 45)

I plug in the points but it keep s telling me it's wrong, am I missing something?
 
I have these two equations:

The demand for coffee is given by the following equation, where QD stands for the quantity demanded and P stands for price.

QD = 100 - 4P

The supply of coffee is given by the following equation, where QS stands for the quantity supplied and P stands for price.

QS = 10 + 2P

I need to graph with the following instructions:
Select the tool "Demand" to plot the demand curve such that the endpoints touch each axis (where P = 0 and Q = 0). Select the tool "Supply" to plot the supply curve using the vertical intercept for one endpoint and the other point located at a value of Q = 100.

What I understand from the Demand is that they want me to plug the values when P=0 and when Q=0

I took each equation and plug in 0. For Q=100-4P I got 100 (100,0). Then when Q=0 I got (0,25)

For Supply the y-intercept would be (0,10) and then took Q=10+2P and got P=45 (100, 45)

I plug in the points but it keep s telling me it's wrong, am I missing something?

What did you plot as y-axis?
 
Top