NCSSM placement test best question
with correct answers
binomial - ANS-a polynomial with two terms
constant - ANS-a value that does not change
factor - ANS-a number or expression that is multiplied by another number or expression
to get a product
monomial - ANS-a number or a product of numbers and variables with whole-number
exponents, or a polynomial with one term
polynomial - ANS-a monomial or a sum or difference of monomials
consistent system - ANS-a system of equations or inequalities that has at least one
solution
dependent system - ANS-a system of equations that has infinitely many solutions
elimination method - ANS-a method used to solve systems of equations in which one
variable is eliminated by adding or subtracting two equations of the system
inconsistent system - ANS-a system of equations or inequalities that has no solution
independent system - ANS-a system of equations that has exactly one solution
substitution method - ANS-A method used to solve systems of equations by solving an
equation for one variable and substituting the resulting expression into the other
equation(s)
system of linear equations - ANS-a system of equations in which all of the equations are
linear
correlation - ANS-a measure of the strength an direction of the relationship between two
variables or data sets
, correlation coefficient - ANS-a number r greater than or equal to -1 and less than or
equal to 1, that describes how closely the points in a scatter plot cluster around the line
of best fit.
linear regression - ANS-a statistical method used to fit a linear model to a given data set
residual - ANS-the signed vertical distance between a data point and a line of fit
X-Intercept - ANS-The x-coordinate(s) of the point(s) where a graph intersects the x-
axis.
Y-Intercept - ANS-The y-coordinate(s) of the point(s) where a graph intersects the y-
axis.
Linear Function - ANS-A function that can be written in the form y=mx+b, where x is the
independent variable and m and b are real numbers. Its graph is a line.
Rate - ANS-A ratio that compares two quantities measured in different units.
Rate of Change - ANS-A ratio that compares the amount of change in a dependent
variable to the amount of change in an independent variable.
Slope - ANS-A measure of the steepness of a line.
Exponent - ANS-The number that indicates how many times the base in a power is
used as a factor.
Exponential Expressions - ANS-An algebraic expression in which the variable is in an
exponent with a fixed number as the base.
Exponential Function - ANS-A function in the form f(x)=ab^x where a and b are real
numbers, a does not equal zero, b>0, and b does not equal 1.
Perfect Square - ANS-A number whose positive square root is a whole number.
Exponential Growth - ANS-An exponential function in the form y=a(1+r)^t, where r is the
rate of growth, a is the initial amount and t is the time.
Exponential Decay - ANS-An exponential function in this form, where r is the rate of
decay, a is the initial amount and t is the time.
Base - ANS-The number in a power that is used as a factor.
Half-life - ANS-The half-life of a substance is the time it takes for one-half of the
substance to decay into another substance.
with correct answers
binomial - ANS-a polynomial with two terms
constant - ANS-a value that does not change
factor - ANS-a number or expression that is multiplied by another number or expression
to get a product
monomial - ANS-a number or a product of numbers and variables with whole-number
exponents, or a polynomial with one term
polynomial - ANS-a monomial or a sum or difference of monomials
consistent system - ANS-a system of equations or inequalities that has at least one
solution
dependent system - ANS-a system of equations that has infinitely many solutions
elimination method - ANS-a method used to solve systems of equations in which one
variable is eliminated by adding or subtracting two equations of the system
inconsistent system - ANS-a system of equations or inequalities that has no solution
independent system - ANS-a system of equations that has exactly one solution
substitution method - ANS-A method used to solve systems of equations by solving an
equation for one variable and substituting the resulting expression into the other
equation(s)
system of linear equations - ANS-a system of equations in which all of the equations are
linear
correlation - ANS-a measure of the strength an direction of the relationship between two
variables or data sets
, correlation coefficient - ANS-a number r greater than or equal to -1 and less than or
equal to 1, that describes how closely the points in a scatter plot cluster around the line
of best fit.
linear regression - ANS-a statistical method used to fit a linear model to a given data set
residual - ANS-the signed vertical distance between a data point and a line of fit
X-Intercept - ANS-The x-coordinate(s) of the point(s) where a graph intersects the x-
axis.
Y-Intercept - ANS-The y-coordinate(s) of the point(s) where a graph intersects the y-
axis.
Linear Function - ANS-A function that can be written in the form y=mx+b, where x is the
independent variable and m and b are real numbers. Its graph is a line.
Rate - ANS-A ratio that compares two quantities measured in different units.
Rate of Change - ANS-A ratio that compares the amount of change in a dependent
variable to the amount of change in an independent variable.
Slope - ANS-A measure of the steepness of a line.
Exponent - ANS-The number that indicates how many times the base in a power is
used as a factor.
Exponential Expressions - ANS-An algebraic expression in which the variable is in an
exponent with a fixed number as the base.
Exponential Function - ANS-A function in the form f(x)=ab^x where a and b are real
numbers, a does not equal zero, b>0, and b does not equal 1.
Perfect Square - ANS-A number whose positive square root is a whole number.
Exponential Growth - ANS-An exponential function in the form y=a(1+r)^t, where r is the
rate of growth, a is the initial amount and t is the time.
Exponential Decay - ANS-An exponential function in this form, where r is the rate of
decay, a is the initial amount and t is the time.
Base - ANS-The number in a power that is used as a factor.
Half-life - ANS-The half-life of a substance is the time it takes for one-half of the
substance to decay into another substance.
