Grade 8 Math Tiered Vocabulary

linear equation

An equation that makes a straight line graph.

slope

How steep a line is.

y-intercept

Where a line crosses the y-axis.

function

A rule that gives one output for each input.

input

The number you put into a rule.

output

The number you get from a rule.

system of equations

Two equations solved together.

Pythagorean Theorem

A rule for side lengths in right triangles.

square root

A number that makes a product when multiplied by itself.

scientific notation

A way to write very big or small numbers.

transformation

A move of a shape: slide, turn, flip, or resize.

translation

A slide of a shape.

rotation

A turn of a shape.

reflection

A flip of a shape.

analyze

Look at parts carefully.

interpret

Tell what it means.

model

Show with a picture or object.

justify

Tell why your answer is correct.

solve

Find the correct answer.

graph

A picture that shows data or a relationship.

rule

A math plan to get an answer.

change

To become different.