what is the domain and range of f^-1(x), if f(x) = 7x-1. And HOW DO I DO IT!? Thanks?
what is the domain and range of f^-1(x), if f(x) = 7x-1. And HOW DO I DO IT!? Thanks?
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the domain and range for any linear function is x = all real number and y = all real number unless there is a domian that is set with the function.
y = 7x – 1
to find the inverse, exchange x and y and solve for y.
x = 7y – 1
x + 1 = 7y
y = (1/7)x + 1/7
f^-1(x) = (1/7)x + 1/7
the inverse is also a linear function
domain: x = all real number
range: y = all real number
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x = 7y – 1
7y = x + 1
y = (x + 1)/7
the inverse function is: f^-1(x) = (x + 1)/7
domain: all real numbers
range: all real numbers
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