Evaluating functions basic rules (day 3)

Evaluating functions basic rules (day 3)

• 1.
  • Last week– Defining Functions (Lesson 1) • This week – Evaluating Functions (Lesson 2) TODAY!!!! January 21st – Semester 1 Closes Housekeeping
• 2.
  • Formatives –20% of overall grade –IXL skills –Journal Activities –Lesson Practice Work –Lesson quizzes –etc • Summatives – 80% of overall grade –These are the “tests” at the end of the unit Grades
• 3.
  Grade Scale Note: Allgrades from the first semester will be converted to the equivalent letter grade.
• 4.
  Unit 1: Lesson2 Evaluating Functions
• 5.
  Evaluating a functionis similar to evaluating an expression To evaluate a function, replace the variable with a given number.
• 6.
  Important Rules toremember: Exponents – Squaring a negative Adding and Subtracting Integers Order of Operations
• 7.
  Use the followingfunction rule to find f(4). f(x) = −𝑥 + −2 − 𝑥 ÷ 𝑥
• 8.
  Use the followingfunction rule to find f(3). f(x) = 9 ÷ 𝑥2 + 2 − 2𝑥
• 9.
  Use the followingfunction rule to find f(-5). f(x) = 𝑥 + 3 3
• 10.
  Use the followingfunction rule to find g(7). g(x) = 23 − 𝑥