G8

Copyright © Swun Math Grade 8 Cumulative Glossary TE

Term Definition Example Unit

function a relation where each input is

related to exactly one output

7

function

notation

describes a function; the symbol

f(x) replaces y and is read as “the

value of f of x”

y= 2x + 1 is the same as

f(x) = 2x +1

7

function rule an equation which shows the

relationship between the

input (x) and the output (y)

values

7

height of cone the perpendicular distance

from the vertex to the center of

the circular base

11

hemisphere half of a sphere

11

hypotenuse the longest side in a right

triangle; the side opposite the

right angle

7

image a figure after a transformation

9

increase

exponentially

the size increases as the power

increases

5 → 25 → 125

5 → 5² → 5³

2

Grade 8 • Glossary