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Math (PERT Exam): Questions & Verified Answers
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Math (PERT Exam): Questions & Verified Answers
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Math (PERT Exam): Questions & Verified AnswersHow do you solve a system of linear equations by graphing? What do 0,1 and
infinite solutions represent? Right Ans - Graph the lines of both equations.
The point of intersection is the solution. Lines that do not intersect have no
solution. Lines that intersect once have 1 solution. Those that are the same
line have infinite solutions.
How do you divide a polynomial by a monomial? Right Ans - Divide each
term of the polynomial by the monomial
What are the slope-intercept, point-slope, and standard form equations of a
line? Right Ans - Slope-in: y=mx+b where m is slope and b is y-intercept.
Point-Slope:(y-y1)=m(x-x1) where (x1,y1) is a point on the line and M is slope.
Standard-Form: ax+by=c
How do you divide a polynomial by a binomial? Right Ans - Do not separate
the binomial. Completely factor the polynomial and binomial. Simplify were
possible.
What are the rules for combining and simplify expressions involving
exponents with the same base? Right Ans - Multiply: x^a*x^b= X^a+b
Divide: X^a/x^b=X^a-b
Raising an expression to power or exponent:
(x^a)^b= X^a*b
Expression w/ negative exponent: x^-a=1/x^a
Base raised to zero exponent: x^0 =1, x does not equal 0
What are the different types of inequalities and how are they graphed?
Right Ans - Greater than, or less than (>,<) are graphed with OPEN
CIRCLES(meaning the number is not part of the solution)
Greater than or equal to, less than or equal to are graphed with closed or
shaded circles (meaning the number is include in the solution)
What is the quadratic formula and what is he used to find? Right Ans - it is
used to find the zeroes of a function, or where the function crosses the x-axis
What is the order of operations and how is it used? Right Ans - PEMDAS
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