17)
f(x) = 7x - 3
y = 7x - 3
switch x and y
x = 7y - 3
add 3 on both sides
x + 3 = 7y
y = ( x+ 3) / 7
f^-1 (x) = ( x+ 3) / 7
18)
g(x) = - 3x + 4
y = - 3x +4
switch x and y
x = - 3y + 4
x - 4 = - 3y
4 - x = 3y
y = ( 4 - x) / 3
f^-1 (x) = ( 4 - x) / 3
17, Graph x) = 7x-3 and its inverse on the same set of axes 18. 18....
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