Algebra 1 (H) S1 Final Exam Vocab

Good luck!

Coefficient

A number multiplied by a variable

Coordinate Plane

A graph with an x

Domain

The inputs for a function (usually the x

Range

The outputs for a function (usually the y

Function

A relationship between two variables where every input only has one output

Independent Variable

The variable that is purposefully changed

Intercept

Where a line crosses one of the axes on the graph

Like Terms

Two or terms with the same variables and same exponents

Variable

A letter representing an unknown value

Linear Equation

An equation that makes a straight line when graphed

Rate of Change

Another word for slope

Slope

the change in y compared to the change in x

Standard Form

A way to write a linear equation: Ax+By=C

Parallel Lines

two lines that do not intersect and have the same slope

Perpendicular Lines

lines that intersect at a 90 degree angle, and their slopes are opposite reciprocals

Point Slope Form

A way to write a linear equation: y-y₁ = m(x-x₁)

Slope Intercept Form

y=mx+b

Consistent

when a system of equations has at least one solution

Dependent

Two lines that are the same, they cross at every point (infinite solutions)

Inconsistent

two lines that do not intersect (parallel lines, no solution)

Independent

two lines that cross at exactly point

System of Equations

two or more equations considered together

Reciprocal

when you flip the fraction (2/5 → 5/2)

Arithmetic Sequence

a sequence that increases or decreases by the same amount between each number: aₙ=a₁+(n

And Inequality

a compound inequality where the solutions must fulfill both inequalities

Or Inequality

a compound inequality where the solutions must fulfill only one of the inequalities