Precalculus presents sufficient mathematics for courses titled Precalculus, Advanced Mathematics, Algebra 3, or Trigonometry. The material builds on Algebra 2 using a biblical framework. It was written with the hope and prayer that students would know Christ as Savior, grow in their knowledge of him, and understand the value of math for their Christian growth and service. Bible verses and applications are included throughout, and each chapter has an in-depth Bible study on the biblical basis of mathematics. - Introduction for the teacher.