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Question 34795This question is from textbook Prentice Hall Mathematics: Course 3
: Hi,
I need to graph this problem:y=x+2
y=2x+1
I know that the solution is (1,3). Its just every time that I try to graph the equation, my lines dont cross correctly. So that you are not confused with what I am talking about, I am supposed to be solving linear systems by graphing. Please, if you can email this to me before 4/25/06 since it is 4/24/06 that would be great! Thank you and have a great day!
Sincerely,
a student working for 1st honors this marking period
This question is from textbook Prentice Hall Mathematics: Course 3
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! #1 equation: y=x+2
Find the y-intercept: Let x=0, then y=2 ; gives you point (0,2)
Find the x-intercept: Ley y=0, then x=-2; gives you point (-2,0)
Plot these two points and draw a line through them.
#2 equaion: y=2x+1
Find y-int: If x=0 then y= 1; giving point (0,1)
Find x-int: If y=0 then x=-1/2; giving point (-1/2, 0)
Plot these two points and draw a line through them.
If you use the same scale on the x and y axis and are
reasonably careful with your plotting you should be
able to see the x and y values of the point of intersection.
Cheers,
stan H.
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