The slope-intercept form is y = m x + b y = m x + b , where m m is the slope and b b is the y-intercept. y = m x + b y = m x + b Find the values of m m and b b using the form y = m x + b y = m x + b . m = 3 m = 3 b = − 12 b = - 12 The slope of the line is the value of m m , and the y-intercept is the value of b b . Slope: 3 3 y-intercept: ( 0 , − 12 )