Given the function g(x) = 2x + 1. find the domain using the range.
r: {-3, 1}
d: { }

D = {-2, 0}

Step-by-step explanation:

If the range is {-3, 1}, that means -3 and 1 are images of some points a, b in the domain. So, there are two points a, b in the domain such that:

g(a) = -3 and g(b) = 1

If g(a) = -3 then 2a + 1 = -3 >2a = -4 > a = -2

If g(b) = 1 then 2b + 1 = 1 > 2b = 0 > b = 0

Hence D = {-2, 0}

which expression represents the approximate length of bc?

step-by-step explanation: