The slope-intercept form of the linear function is y = m x + b , where m is the slope and b is y-intercept. Here we have: y = 3 x - 3 a ) When y = 0 0 = 3 x - 3 - 3 x = - 3 x = ( - 3 ) : ( - 3 ) x = 1 When x = 0 y = 3 * 0 - 3 y = - 3 So x - intercept is ( 1, 0 ) and y-intercept is ( 0, - 3 ). b ) The slope: m = ( y2 - y1) / ( x2 - x1 ) = = ( - 3 - 3 ) / ( 5- 7 ) = ( - 6 ) /( - 2 ) = 6 / 2 = 3 Answer: The slope m = 3 .
