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The line y = (3x + 7)/2  intersects the circle x^2 + y^2 = 25 at A and B. Find the length of chord AB.

 Nov 30, 2020
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using a graphing calculator (I used desmos) you can insert the 2 equations and get an intersection with 2 points (.94, 4.911), and (-4.171, 2.757). Using these 2 points, use the distance formula ( d=√((x_2-x_1)²+(y_2-y_1)²) ). Plug in the values and you will get √30.762037. 

 Nov 30, 2020

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