answer all four questions

72. write the equation of the line satisfying the given conditions in slope-intercept form. Passing through (-3,7) and (1,2) 82. for each linear equation, a. give the slope m and y -intercept b, if any, and b. graph the line. 6x-5y+15=0 88. use the graph of f (x)= x^2 to graph each transformed function g. g(x)= x^2-1 96. for each of the piecewise-defined functions, a. evaluate at the given values of the independent variable and b. sketch the graph. 96. h (x) = x+1, x15 ; h (0) ; h(x) ; h(5) 4, x > 5