Question

F(x)= -x-4 if x<-7
5x-1 if -7 ≤x≤0
2x+1 if x>0

Answer 1

@Luigi0210 help please

Answer 2

what do you want to do?

Answer 3

we're suppose to graph it and find the domain

Answer 4

Ok well let's start with drawing the y=-x-4 for x<-7 part first

Answer 5

okay and how will that look

Answer 6

that means you are only going to draw y=-x-4 that occurs to the left of x=-7

Answer 7

well we know that y=-x-4 is a line so we only need to know two points on that line before and or at x=-7

Answer 8

if x=-7 then y=-(-7)-4=7-4=3
so plot the point (-7,3)
and then plug in some x before x=-7 like x=-8
if x=-8 then y=-(-8)-4=8-4=4
so plot the point (-8,4)

Answer 9

then draw a line connecting those points

Answer 10

but at x=-7 make sure it is a open hole since we have x<-7 and not x=<-7