uc davis ; math placement Exam Questions and Answers(RATED A)

second degree equations - ANSWER -solved by factoring or the quadratic formula absolute value - ANSWER -equivalent to two equations without the absolute value sign > e.g. |x + 3| = 7 → +(x + 3) = 7 or -(x + 3) = 7 solving linear inequalities - ANSWER -can be treated like a linear equation, however, when multiplying or dividing both sides of an inequality by negative numbers requires the inequality sign to be reversed solving absolute value inequalities - ANSWER -- with absolute value inequalities, you will always have two problems to solve - solve everything outside the parenthesis before the inside after splitting the equation > e.g. 2(x - 5) > 10 → x - 5 > 5 → x > 10 solving higher order inequalities - ANSWER -- cannot be solved in the same way as higher order equalities; must be able to account for all possible combinations of multiplying positive and negative terms - use a number line to solve for these