SOLUTION: I really need help with this: Which of the following equations does the graph represent? I couldn't paste the graph, but the y intercept is 4 and the x intercept is 6.

Algebra ->  Graphs -> SOLUTION: I really need help with this: Which of the following equations does the graph represent? I couldn't paste the graph, but the y intercept is 4 and the x intercept is 6.       Log On


   



Question 1037801: I really need help with this:
Which of the following equations does the graph represent?
I couldn't paste the graph, but the y intercept is 4 and the x intercept is 6.

A. y= 2/3 x+4

B. y= 3/2 x+4

C. y=- 3/2 x+4

D. y=- 2/3 x+4


any help is greatly appreciated!


Found 2 solutions by tutor_paul, Alan3354:
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
The equations are given in the following form:
y=mx%2Bb
where:
m=slope
b =y-intercept
All of the equations given have a Y intercept of 4, so just looking at the
Y-intercept stills leaves all the equations as possible answers. So we have to
use the X intercept. What is the X-intercept you may ask? That is the point where the Y value of the equation is 0.
So, the question is, for what equation does a value of x=6 result in y=0?
You can see that (d) is the correct answer::
y=%28-2%2F3%29%2A6%2B4
Simplifying this shows that y=0:
highlight%28y=-4%2B4=0%29
=======================
Good Luck,
tutor_paul@yahoo.com

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x-int = A
y-int = B
--> Bx + Ay = A*B
-------
4x + 6y = 24