Line JK passes through points J(–4, –5) and K(–6, 3). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?
In order to figure out slope-intercept form you need 1 coordinate and the slope. 1) Find the slope, using the 2-point slope formula: "m= y2-y1 / x2-x1". ex. m= -5 - 3 / -4 - -6 (simplify)---> m= -4
2) Fill in the blanks for point-slope formula: "y - y1 = m (x - x1)" (choose one coordinate, it doesn't matter which one) ex. y - -5 = -4 (x - -4)
