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The image is very small and none of the graphs are clear. But the graph in the middle on the top row is one that shows a line with equation y = x.
This line has a slope of 1 and as it passes through the origin, the intercept is 0.
I really wish i could help but the picture seems too small.
I try to explain the slope intercept form for Q.1 in graph . (Sorry I unable to find a good quality image from attachment ,if you unable to understand again I shall explain )
Line posses through (-4,0) and (0,3)
On looking graph immediately you can conclude x-intercept is -4 and y-intercept is 3
calculate slope of the line from the points
Line posses through (0,3) ( you can choose another point also)
which is similar to
c = y-intercept
m=slope of the line with positive x-axis.
It just simple.
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