Get started today!

Good to have you back!
If you've signed in to StudyBlue with Facebook in the past, please do that again.

- StudyBlue
- Florida
- Strawberry Crest High School
- Trigonometry 2011
- Rothrock
- Ch 2: Vocab Terms

Jamie S.

greatest-integer function

f(x)=int(x)=greatest integer less than or equal to x

square root function

f(x)=√x

Advertisement

reciprocal function

f(x)=1/x

square function

f(x)=x^{2}

identity function

f(x)=x; aka y=x

constant function

f(x)=b; b is a real number

linear function

f(x)=mx+b (m & b are real numbers!)

another name for the greatest-integer function

step function

piecewise-defined function

when functions are defined by more than one equation

the sum f+g is the function defined by

(f+g)(x)= f(x)+g(x)

the difference f-g is the function defined by

(f-g)(x)= f(x)-g(x)

Advertisement

even function formula

f(-x) = f(x)

odd function formula

f(-x) = -f(x)

slope of a secant line theorem

the average rate of change of a function = the slope of the secant line containing 2 points on its graph

constant of proportionality

the number *k*

relation

correspondence between 2 sets

domain of a function

the set X

Vertical-line test

Can be used to see if a graph is a function.

direct proportion formula

y = kx

varitation

how one quantity varies in relation to another quantity

What are 3 ways quantities may vary?

directly, inversely, or jointly

its graph is symmetric with respect to the y-axis

even function

its graph is symmetric with respect to the origin

odd function

reflection about the x-axis

the right side of a function y=f(x) is multiplied by -1, the graph of the new function y= -f(x) is a reflection about the x-axis of y=f(x)

reflection about the y-axis

if the graph of a function is y=f(x), the graph of the function y= f(-x) is the reflection about the y-axis of y=f(x)

"StudyBlue is great for studying. I love the study guides, flashcards and quizzes. So extremely helpful for all of my classes!"

Alice , Arizona State University"I'm a student using StudyBlue, and I can 100% say that it helps me so much. Study materials for almost every subject in school are available in StudyBlue. It is so helpful for my education!"

Tim , University of Florida"StudyBlue provides way more features than other studying apps, and thus allows me to learn very quickly! I actually feel much more comfortable taking my exams after I study with this app. It's amazing!"

Jennifer , Rutgers University"I love flashcards but carrying around physical flashcards is cumbersome and simply outdated. StudyBlue is exactly what I was looking for!"

Justin , LSU
StudyBlue is not sponsored or endorsed by any college, university, or instructor.

© 2015 StudyBlue Inc. All rights reserved.

© 2015 StudyBlue Inc. All rights reserved.