What is the domain and range of absolute lxl - 5
True
2x = 5 x = 2.5
2x + 5 = 13 2x = 8 2x/2 = 8/2 x=4
y=2x-4 y=2x-5 y=1 1=2x-4 -2x = -5 x=2/5 the solution is (x,y) = (2/5,1)
The range depends on the domain and conversely.
Domain : set of all reals Range: set of all reals
7
(2x+3) / 5 Domain = All Real Numbers Range = All Real Numbers
Domain is the number of x values that can be used and not cause an imaginary result. Range is the number of the y values that result. In f(x)=2x-5 the range is all real numbers.
domain: all real numbers range: {5}
What is the domain and range of absolute lxl - 5
Find all possible "x" and "y" values for domain and range. Then put it in inequality form. For example the domain and range for the equation 2x-3/x-5 would be: Domain: All Reals; x>5 Range: All Reals
The range is {-5, -2, 1, 4}
True
The answer depends on the domain. If the domain is the whole of the real numbers, the range in y ≥ 1. However, you can choose to have the domain as [1, 2] in which case the range will be [2, 5]. If you choose another domain you will get another range.
2x = 5 x = 2.5