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Find of the x-intercept of the line that contains the points -2 3 and 2 0 by graphing.?
Wizzlebird
hard to do this here since I can't graph it, but here is what you do graph the two points (-2,3) and (2,0) and then connect the points with a line to graph the line. Now look at where the line intersects the x axis. we could check it by finding the slope 3-0/-2-2=-3/4 now plug this in y=-3/4(x-2) or y=-3/4x+6/4 so y intercept is 3/2 and x intercept is 0=-3/4x+3/2 or -3/2=-3/4x so x=2 and the x intercept is 2 or the point (2,0) BUT THE POINT (2,0) told us this before we did any work, sine (2,0) is on the line and it is the point where y=0 and x=2.. THIS IS THE X intercept! Doctor Chuck
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∙ 15y ago
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