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### Assignment 8

The line goes through the points and and intersects the line:

in the point .

Calculate the coordinates of .

### Solution

We can use the formula that computes the slope of the line from the points and , but this is not necessary. We notice that the -coordinates of both points are equal, meaning that the line is parallel to the -axis and thus has the equation . The -coordinate of the intersection point is:

and thus has the coordinates , see the figure.

Return to Assignments Linear functions and graphs.