G8

Copyright © Swun Math Grade 8 Cumulative Glossary TE

Grade 8 • Glossary

Term Definition Example Unit

slope-intercept

form

a common way of writing a

linear equation so that the

slope and y-intercept are

immediately apparent

6, 8,

12

solution to

systems of

equations

a system can have three

possible solutions:

• no solution (parallel lines)


• one solution (intersecting lines)


• infinite solutions (same line)

8

sphere (^) a three-dimensional figure
where every point on the surface
is the same distance from the
center; a round ball
(^)
11
square root a value that, when multiplied
by itself, gives the number (^)
16 = 4
1
square number the result after multiplying an
integer by itself; also called a
perfect square
4, 9, 16, 25 1
standard form an equation where x and y are
on the same side of the equal
sign
6
straight angle an angle of 180°
10
substitution
method
solves for one variable in the
equation and then substitutes
that variable in the other
equation
8