The domain is defined to be the possible x-values, so if x<-1, the domain consists of those numbers that are less than -1.
The range is defined to be the possible y-values, so if y = 2x + 8 and x < -1,
replacing x with -1, we have y = 2(-1) + 8 = 6. Thus if x < -1, y < 6.
Domain: -∞ < x < -1
Range: -∞ < y < 6
The domain is defined to be the possible x-values, so if x<-1, the domain consists of those numbers that are less than -1.
The range is defined to be the possible y-values, so if y = 2x + 8 and x < -1,
replacing x with -1, we have y = 2(-1) + 8 = 6. Thus if x < -1, y < 6.
Domain: -∞ < x < -1
Range: -∞ < y < 6