help me Find the inverse of the onetoone function fx 8x 53
help me
Solution
6) f(x) = (8x +5)/3
Find inverse by replacing x= y ; y = x and solve for y
y = (8x +5)/3
x = (8y +5)/3
3x = 8y +5
y = (3x - 5)/8
f^-1(x) = (3x -5)/8
7) ( 2, -5) and ( 6,-3)
Distance= sqrt[ (6 -2)^2 + (-5 +3)^2]
= sqrt(4^2 +2^2]
=sqrt20 = 2sqrt5
Midpoint = (2+6)/2 = 4 ; (-5-3)/2 = -4
Mipoint = ( 4, -4)
