Question 400091
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Hi
*[tex \LARGE\ \ the \ standard \ slope-intercept \ form \ for \ an \ equation \ of \ a  \ line \ y = mx + b ] 
*[tex \LARGE\ where \ m \ is \ the \ slope \ and \ b \ the \ y-intercept]
One finds the x-intercept by exploring when y = 0
  0 = mx + b 
 -b/m = x, the x coordinate of the x-intercept