PT1 solutions

PT1 solutions - PRACTICE TEST 1 1 Find the inverse function...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PRACTICE TEST 1 1. Find the inverse function, ( 29 1 f x - of ( 29 2 f x x = - + ( 29 ( 29 1 2 2 1 2 ; 2 : 0 2 ; 2 , 0 0 f f x x y x y NOTE x x y y x f x x D x - - = - + = = - + = + = - = = 2. Find the natural domain [give answers in interval notation where reasonable]: a) the functions 1 and f f - given in problem 1. 1 1 2, 2 ; 0, 0 f f f f D x R y R y D x - - = ≥ - = ≥ - = = b) ( 29 2 3 9 x g x x - = + ( 29 , g D all real numbers = -∞ +∞ = c) ( 29 { } 2 1 ; | 2, 2 4 h h x D x x x = = - - d) ( 29 2 1 r x x = - USE A SIGN GRAPH Put – 1 and 1 on the sign graph, then find that ( 29 ( 29 1 1 x x + - is negative if x < - 1 or x > 1, so { } | 1 1 r D x x = - ≤ 3. Find the equation of the line passing through the point (4, -2) and perpendicular to the line 2 3 4 x y - = . Write the answer in slope-intercept form. Solve for y, getting 2 4 3 3 y x = - , so the slope of this is 2/3, hence for the perpendicular, its – 3/2] So the equation of the perperpendicular through (4, - 2) is
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

PT1 solutions - PRACTICE TEST 1 1 Find the inverse function...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online