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## MAC 1105

by: Alicia Rooney

5

0

2

# MAC 1105 MAC 1105-88394

Alicia Rooney

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Exam 2 notes
COURSE
College Algebra 1105
PROF.
Mrs. Duncan
TYPE
Study Guide
PAGES
2
WORDS
CONCEPTS
Algebra
KARMA
50 ?

## Popular in Mathematics

This 2 page Study Guide was uploaded by Alicia Rooney on Sunday October 9, 2016. The Study Guide belongs to MAC 1105-88394 at Hillsborough Community College taught by Mrs. Duncan in Fall 2016. Since its upload, it has received 5 views. For similar materials see College Algebra 1105 in Mathematics at Hillsborough Community College.

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Date Created: 10/09/16
Exam two notes  2.3&2.4 o Average Rate of Change o Slope intercept form: y=mx+b  Slope is the m  Y-intercept is the b o Average rate of change: y2-y1/x2-x1 o Point slope form: y-y1=m(x-x ) 1 o Slope and perpendicular lines  If two nonvertical lines are perpendicular, then the product of their slope if -1  If the product of the slope of the two lines is -1, then the lines are perpendicular  A horizontal line having zero slope is perpendicular to a vertical line having undefined slope  2.5 o Transitions of Equations  Vertical shifts- sign is not in the parentheses (+ -)  Up and down  Horizontal shifts- sign is in the parentheses (+ -)  Right and left  External negative- reflection over x axis  Internal negative- reflection over y axis  2.6 o Domain of a function  If there is a root function, take what is in the root and set it greater than or equal to zero and solve for x  the domain of the function  When there is a fraction, solve the denominator so that x CANNOT equal zero  domain  Functions with f and g solve and make sure they are in the lowest term  F of G  Put the value into the function of G and then put that product into the function of F  Vice versa for G of F  2.7 o Inverse Function  You will have an inverse if:  You’re a function  Pass the horizontal and vertical line test  F  the inverse of F notation  To find the inverse of a function:  Write in standard form  Interchange x and y  Solve for y -1  Change y to F 2

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