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Algebra 1st
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Gravity
Terms in this set (39)
Coefficient
numerical factor of a term
Exponent
indicates the number of times x is used as a factor in the form xn
Domain
set of the first numbers of the ordered pairs in a relation
Range
set of the second numbers of the ordered pairs in a relation
Reciprocal
multiplicative inverse of a number
Variable
symbols used to represent unspecified numbers or values
Order of Operations
Add/Subtract
Parenthesis, Exponents, Multiply/Divide,
Inequality
an open sentence that contains the symbols <, >, ≤, ≥
Ratio
comparison of two numbers by division
Proportion
an equation of the form a/b = c/d stating that the ratios are equivalent
Formula
an equation that states a rule for the relationship between certain quantities
X-axis
horizontal number line on the coordinate plane
Y-axis
vertical number line on the coordinate plane
Zero
roots of a quadratic function
Terms
number, variable, or a product or quotient of numbers and variables
Inverse
obtained by switching the coordinates in each ordered pair
Function
a relation in which each element of the domain is paired with exactly one element of the range
Slope Intercept Form
equation of the form y=mx+b where m is the slope and b the y-intercept
Slope
ratio of the change in the y-coordinates to the change in the x-
coordinates
Parallel Lines
lines in the same plane that never intersect
Y-intercept
the y-coordinate when a line crosses the y-axis
Point-Slope Form
equation of the form y - y1 = m(x - x1) where m is the slope and (x1, y1) is a given point
Dependent
system of equations that has an infinite number of solutions
Independent
system of equations with exactly one solution
Elimination
the use of addition or subtraction to eliminate a variable and solve a system of equations
Substitution
solve one equation in terms of another
System of Equations
a set of equations with the same variables
Continuous Function
a function that can be graphed with a line or a smooth curve
Perfect Square
a number with a square root that is a rational number
Solution Set
set of elements from the replacement set that make an open
sentence true
Factors
quantities that can be multiplied together
Integers
the set {..., -2, -1, 0, 1, 2, ...}
Multiplicative Inverses
two numbers with a product of one
Counterexample
specific case in which a statement is false
Coordinate Plane
plane containing the x-axis and y-axis
Numerator
top of a fraction
Denominator
bottom of a fraction
Quotient
obtained when dividing two numbers
Product
obtained when multiplying two numbers
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