1) what is the slope of x+y=4?
2) what is the slope of 2x+2y=8?
3) do these two lines have the same y-intercept?
4) how can you relate the slopes and y-intercepts of each equation to the number of solutions for the linear system of equations?
(the number of solutions for the system is infinite)
! : d

1) y=-x+4, the slope is -1
2)y=-x+4, slope is -1
3) yes
4)It's the same line if the slopes and y-intercepts are the same, so the number of corresponding points are infinite.

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.

step-by-step explanation:

12 minutes