College Algebra Questions and Correct Answers/ Latest Update / Already Graded

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College Algebra Questions and Correct
Answers/ Latest Update / Already
Graded
quadratic formula


Ans:




compound interest formula


Ans:




simple interest formula


Ans:




distance formula


Ans: D=R X T




complex numbers

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Ans:




discriminant formula


Ans: if D> 0: 2 real solutions


if D<0: 2 non-real solutions


if D=0 : exactly 1 solution




factor by grouping


Ans:




inequality signs


Ans:




when the inequality sign changes


Ans: if you multiply or dividing both sides of the inequality by a negative

number it changes the direction of the sign

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when the inequality sign does not change


Ans: if you add or subtract both sides of the inequality




solving a compound inequality with and


Ans: it will involve the word and- first solve each inequality separately-

then find the intersection of the two solution sets




interval notation of compound inequalities with the word or


Ans: will have the union sign U




greater/ less than or equal to


Ans: filled in circle




greater than/ less than


Ans: open circle