Question

Find the domain and range of the function
1)f(x)=5x-10
b)f(x)=15-√x
c)f(x)=2 modulusx+7
d)f(x)=$\sqrt[3]{x}$+100

Answer 1

1)f(x)=5x-10
domain is (-∞,∞)
range is (-∞,∞)

b)f(x)=15-√x
domain is [0,∞)
range is (-∞,15]

c)f(x)=2|x|+7
domain is (-∞,∞)
range is [7,∞)

d)f(x)=+100
domain is (-∞,∞)
range is (-∞,∞)