# WA1 - y-4/3x-12=0 Y=-3/4X 7/4 M=-3/4 Section 1.3(10 and 32...

This preview shows pages 1–3. Sign up to view the full content.

Robert E Goode Student ID: 0451848 Thomas Edison State College MAT-231-GS004 Mentor: Franco Paoletti Date: 9/4/11 Writing Assignment #1 Section 1.2 (24,26,28,32,38,60,62) 24. -5y=-6x+15 5y=6x-15 Y=6/5x-3, therefore slope = 6/5, y intercept (0,-3) 26. y=-1, The line is vertical therefore the slope is undefined and there are an infinite amount of y intercepts because y=-1 28. Point (-1,2) slope: undefined Y=2 32. (-2,4): Point Slope: -3/5 Y= -3/5x y=-3/5x+14/5 38. (-3,6), (1,2) m = (Y 1 -Y 2 /X 1 -X 2 ) = (6-2)/(-3-1) = -1 Y= -x+b, using (-3,6) 6=3+b, therefore b=3 Y=-x+3 60.

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

View Full Document
Point (-3,2) Line: X+Y=7 Y=-x+7, m=-1 a. y-2=-1(x+3) b. y-2=1(X+3) y-2=-x-3 y-2=X+3 X+Y+1=0 y-X-5=0 62. (-6,4) a. y-4=3/4(X+6) b. y-4=4/3(X+6) 3X+4Y=7 y-4=3/4x+18/4 y-4=4/3x+8 4Y=-3X+7 y-3/4x-34/4=0
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: y-4/3x-12=0 Y=-3/4X + 7/4 M=-3/4 Section 1.3 (10 and 32) 10. f(x)=3x-1 f(x)-f(1)/x-1 [f(x)-f(1)]/(x-1) = (3x-1-2)/(x-1) = (3x-3)/(x-1) 32. g(x) = 4/x X Y-4-1-2-2-1-4 1 4 2 2 4 1 Domain: 0>X>0 Range: 0>Y>0 Section 1.5 (34,56,64,76,94) 34. f(x) = x 2 X=y 2 , therefore x 1/2 =y f-1 (x)=x 1/2 which represents the inverse of the positive domain portion of y=x 2 56. f(x)=cotx (0,π) F passes horizontal line test on (0,π) hence one-to-one 64. f(x) =16-x 4 Y 1/2 =4-x 2-x 2 =y 1/2-4 X 2 =-y 1/2 +4 X=-y 1/4 +2 Therefore y=-x 1/4 +2 Domain X is greater than or equal to zero 76. (g-1 *g-1 )(-4) g(x) = x 3 y 1/3 =x y=x 1/3 g-1 (x)=x 1/3-4 1/3 *-4 1/3 =2.52 94. Arccot (-3 1/2 ) = arctan (-1/3 1/2 ) = -π/6...
View Full Document

## This note was uploaded on 11/15/2011 for the course MATH 231 taught by Professor Calculusi during the Fall '11 term at Thomas Edison State.

### Page1 / 3

WA1 - y-4/3x-12=0 Y=-3/4X 7/4 M=-3/4 Section 1.3(10 and 32...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online