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Algebra 2 Trig Vocab
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Gravity
Terms in this set (35)
opposite
the additive inverse of b is - b
exponent
the number or variable that shows how many times the base is used as a factor
equivalent
same solution or value for variables
solve
to rewrite an equation as an equivalent expression inwhich the variable is on one side
relation
pairing of inpout values with output values
liner
on a line
y intercept
the y coordinate of a graph where a graph intersects the y axis
reciprocal
the multiplicitive inverse of b is 1/2 b
variable
a letter used to represent 1 or more numbers
identity
a statement that equates 2 equivalent expressions
extraneous
an apparent solution that must be rejected because it doesnt satisfy the original equation
domain
the set of input values in a relation
slope
rise / run
x intercept
a point at which the graph intercepts the x axis
expression
a mathematical formula that doesnt contain an equal sign or inequality
constant
a number with no variable
equation
a statement that 2 expressions are equal
inequality
any of the symbols... <,> etc
range
the set of y values in a function or relation... set of values assumed by a function of the independent variable
parallel
2 distinct coplanar lines that dont intersect
rate of change
change in the value of a quantity divided by elapsed time
power
the result of raising a base to an exponent
coefficient
when a tern is a number and a variable, the number is the coefficient
solution
any value of the variables that satisfies an equation
absolute value
makes a negative number positive, positive numbers and zero are left unchanged
function
a relation for which each element of the domain corresponds to exactly one element of the range
perpendicular
at a 90 degree angle
scatter plot
a graph with points plotted to show a possible relationship between two sets of data.
slope intercept form
y=mx+b
point slope form
y-y1 = m(x-x1), where m is the slope and (x1,y1) is the point the line is passing through.
midpoint formula
(x₁+x₂)/2, (y₁+y₂)/2
slope formula
y2-y1/x2-x1
standard form
Ax + By=C, where A, B, and C are not decimals or fractions, where A and B are not both zero, and where A is not a negative
function notation
To write a rule in function notation, you use the symbol f(x) in place of y.
distance formula
d = √[( x₂ - x₁) + (y₂ - y₁)]
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