MAT - 117 - Precalculus for Business and Social Sciences

This course provides comprehensive knowledge of algebra with an emphasis on graphing to visualize and solving real life application problems in the field of business, social and health sciences. Topics include linear and quadratic modeling, solutions of linear and quadratic equations, exponential and logarithmic functions; polynomial and rational functions; systems of equations.

Prerequisite(s)

MAT-063, MAT-097, or MAT-098 or placement at college level on math placement test. 

Problems

  1. Find the time required for an investment of 7,000 dollars to grow to 10,000 dollars at an interest rate of 7% per year, compounded monthly. Give your answer accurate to 2 decimal places.
  2. Find the domain of the following function: f(x) = the square root of x + 5 over x - 1
  3. You decide to begin selling frozen bananas at the local park. Your cost for each frozen banana is $1.27 plus you have to pay a fixed weekly fee of $200 for the booth. Your plan is to sell each frozen banana for $2.91. What is the break even quantity?

Answers/Solutions

  1. 5.11
  2. (-5,1) Big Union (1,infinity)
  3. 122