Math

Linear equation

Is an equation in which the highest power of the variable is always 1. It is also known as a one degree equation

slope of a line

Is the steepness of the line.

three kinds of system of linear equations in two variables according to the number of solutions

system of consistent and dependent equations, system of consisted and independent equations,

system of consistent and dependent equations

is a system of linear equations having infinity many solutions slope the lines defined by the equation are equal

system of consisted and independent equations

ordered pair (x,y)

is a solution of linear inequality in two variables in two variables if the inequality is true when the values of x and y are substituted into the inequality

independent variable

is the factor in an experiment that the researcher intentionally manipulates or changes to observe its effect

dependent variable

is what the researcher measures to see if it changes as a result of the manipulation of the independent variable.

conditional statement (also called an if-then statement)

hypothesis followed by a conclusion.

an if-then statement is composed of two clauses

if clause (a), then clause (b)

if p then q

the p statement is called hypothesis and the q statement is called conclusion

if p and q is true then

it is true

if p is true and q is false then

it is false

if p is false and q is true then

it is true

if p and q are false then

it is false