Answer:
Step-by-step explanation:
3) slope is rise over run.. look at the graph and count
from the dot rise=4 run=2 4/2 = 2 slope of 3) is 2
4) rise = -3 run =1 slope of 4) is -3
5) rise =1 run =2 slope of 5) is 1/2
6) rise = ∞ run = 0 slope of 6) is undefined
For a solution to exist the x and y values must be equal at that point.
I'll solve both for y first (and there are other ways to do this of course)
2x+4y=1, 4y=1-2x, y=(1-2x)/4
3x-5y=7, -5y=7-3x, y=(3x-7)/5
Since y=y at the solution point we can say:
(1-2x)/4=(3x-7)/5 cross multiplying...
5-10x=12x-28
-22x=-33
x=3/2 or if you prefer 1.5, now we can solve for y using either origianl equation...
2(1.5)+4y=1
3+4y=1
4y=-2
y=-0.5
So the solution is the point (1.5, -0.5)
Answer:
15
Step-by-step explanation:
what do we do??? im not understanding the question..lol
