The graph below represents which system of inequalities?
y > 2x - 3 y > -x - 3 y < 2x - 2 y < -x + 3 y <= 2x - 2 y > -x + 3 None of the above
@mathstudent55 Can you help me out <3!
Look at the solid line in the graph. A solid line means >= or <=.
Yes?
I have a question for you. Did you copy your choices correctly?
Yes i did
In your 3 choices, only one choice has one inequality with >= or <= in one of the inequalities. All other inequalities only have > or <.
If you copied the choices correctly, then A and B cannot be the answer because they both have only > or <. The solid line means <= or>=. So eliminate choices A and B.
So its either C or D but how do i know??
Oh, I see the choices are below the graph. You are correct. Once again, A nad B are out. Let's look at C.
Look at the solid line in the graph. It has a y-intercept of what? Where does the solid line cross the y-axis?
It crosses at 1
Thta is the x-axis. I asked where it crosses the y-axis.
-_-sorry -2
OK. That suggests a line with equation y = mx - 2 Now let's look at the slope of the solid line.
The slope is 1 :D
Start at the point where the solid line crosses the y-axis. Go up 2 units and to the right 1 unit. That's a point on the line, right?
Nope.
Yes it is. That's the point (1, 0) which is the x-intercept and the line goes right through it.
I am really lost
|dw:1360865743054:dw|
Join our real-time social learning platform and learn together with your friends!