Graph the function with the given domain. Then identify the range of the function. 28. y=4 ; domain: x<=5
29. y=-6; domain: x>=5
30. y=2x+3;domain: -4<=x<=0
31. y=-x-1; domain: -1<=x<=3

(!answer example! y=-1/2x+4;domain: x>=. Ans: y<=4)

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.