Algebra 1 Vocabulary

Used to solve systems of equat. by solving for one variable & substituting the resulting expression to another equation.

Bar graph used to display data grouped in class intervals. The width of each bar is proportional to the class interval.

A method of showing how data is distributed by using the median, quartiles, and minimum and maximum values.

The set of all first coordinates (input or x-values) of a relation or function.

A real number xwill be called a solution or a root if it satisfies the equation ax^2+bx+c=0

The equation of a straight line in the formy=mx+b where m is the slope of the line and b is its y-intercept

The highest or lowest point on the parabola.

The parts of the expression that are added or subtracted.

Polynomial in one variable is written in standard form when the terms are in order from greatest degree to least degree.

A test used to determine whether a relation is a function.

The y-value of the lowest point on the graph of the function.

An exponential function of the form f(x)=ab^x. If r is the rate of decay then the function can be written y=a(1-r)^t

Two inequalities that are combined into one statement by the word and or.

The y value of the highest point on the graph of the function.

A number or expression that is multiplied by another number or expression to get a product.

A line that divides a coordinate plane into two half- planes.

A measure of the steepness of a line.

Number or expressions we can multiply together to get another expression.

h=-16^2+vt+s, werevis the initial velocity in feet per second andsis the starting height in feet.

For the function f, any number x such that f\left(x\right)=0

A polynomial with three terms

The middle value or the average of the middle two values.

A function of the form f(x)=ab^x.

The line w, slope m that has point \left(_{x_1,_{ }y_1}\right)can be described by the equation y-y_1=m\left(x-x_1\right)

A statement that compares two expressions by using one of the following signs, <,>,\le,\ge=,or\ne.

The degree of the term of the polynomial with the greatest degree.

A sum or difference of monomials.

The largest monomial that is a factor of each term of the polynomial. The GCF must be a factor of EVERY term.

A polynomial in the form a^2-b^2. Which may be written as the product \left((a+b\right)\left(a-b\right).

What is an Expression?

The mean is the middle value or the average of the middle two values.

The formulax=\frac{-b\pm\sqrt{b^2-4ac}}{2a}, which gives solutions, or roots, of equations in the formax^2+bx+c=0.

Process used to form a perfect square trinomial. To complete the square ofx^2+bx,and add (\frac{b}{2})^2.

Ax+By=C,where the A, B, and C are constants and A and B are not both 0.

A number that multiplied by a variable.

An exponential function of the form f(x)=ab^x. If ris the rate of growth then the function can be written y=a(1+r)^t.

A line that divides a plane figure or a graph into two congruent reflected halves.

A polynomial with two terms.

A trinomial whose factored form is the square of a binomial.

For real numbers pandq, if pq=0thenp=0orq=0

An equation in the form ax^2+bx+c=0, where a, b, and c are real numbers and a\ne0.

Quadratic function wrote in the form\left(f(x)=a(x-h\right)^2+k werea,h,& kare constants &\left(h,k\right)is the vertex.

Difference of the third (upper) and the first (lower) quartiles of the data set, representing the middle half of data.

The coefficient of the first terms of a polynomial in standard form.

A number or a product of numbers and variables with whole-numbers exponents, or a polynomial with one term.

The set of all the second coordinates (input or x-values) of a function or relation.

A relation in which every domain value is paired exactly one range value.

The opposite of a number. Two numbers are additive inverses if their sum is zero.

Operations that undo each other.

Method used to solve systems of equations in which one variable is eliminated by adding or subtracting two equations.

The part of the coordinate plane on one side of a line, which may include the line.

The shape of a graph of a quadratic function.