Determine whether f(x) is continuous at x-1 using the definition of continuity. If it is not continuous, identify the type of discontinuity. Show all your work and reasoning on your paper. { 3x + 5, if x < 1
{ 7 + ln(x), if x = 1
{ 4+2^x+1, if x > 1 a. continuous b. infinite discontinuity c. jump discontinuity d. removable discontinuity