a. Rewrite the given equation 7x+8y-56-0 slope-intercept form. b. Give the slope and y-intercept. c. Use the slope and y-intercept to graph the linear function. -7 ***** a. The slope-intercept form of the equation is y=x+7. 8 (Simplify your answer. Use integers or fractions for any numbers in the equation.) b. The slope of the equation of the line is and the y-intercept is (Type integers or fractions.)