Answer:
[2,8]
Step-by-step explanation:
Well since it's a linear function it's ends will be the extrema, so plugging the domain restrictions that you are given:
y=-2(1)+10
y=-2+10
y=8
and
y=-2(4)+10
y=-8+10
y=2
so since 2 is lower than 8, its the lower range bound, and since both the 1 and the 4 are included in the domain it will be a closed interval:
[2,8]
