Chapter 5 Linear Functions

Chapter 5 Get Ready!

• Lesson 1-9 Solutions of a Two-Variable Equation

  Tell whether the given ordered pair is a solution of the equation.

  1. 4 y + 2 x = 3 ; ( 1.5 , 0 ) 4 y plus 2 x equals 3 semicolon open 1.5 comma 0 close
  2. y = 7 x − 5 ; ( 0 , 5 ) y equals 7 x minus 5 semicolon open 0 comma 5 close
  3. y = − 2 x + 5 ; ( 2 , 1 ) y equals negative 2 x plus 5 semicolon open 2 comma 1 close

• Lesson 2-5 Transforming Equations

  Solve each equation for y.

  4. 2 y − x = 4 2 y minus x equals 4
  5. 3 x = y + 2 3 x equals y plus 2
  6. − 2 y − 2 x = 4 negative 2 y minus 2 x equals 4

• Lesson 2-6 Comparing Unit Rates

  7. Transportation A car traveled 360 km in 6 h. A train traveled 400 km in 8 h. A boat traveled 375 km in 5 h. Which had the fastest average speed?
  8. Plants A birch tree grew 2.5 in. in 5 months. A bean plant grew 8 in. in 10 months. A rose bush grew 5 in. in 8 months. Which grew the fastest?

• Lesson 4-4 Graphing a Function Rule

  Make a table of values for each function rule. Then graph each function.

  9. f ( x ) = x + 3 f open x close equals x plus 3
  10. f ( x ) = − 2 x f open x close equals negative 2 x
  11. f ( x ) = x − 4 f open x close equals x minus 4

• Lesson 4-7 Arithmetic Sequences

  Write a rule for each arithmetic sequence.

  12. 2, 5, 8, 11, …
  13. 13, 10, 7, 4, …
  14. − 3 , − 0.5 , 2 , 4.5 , … negative 3 comma negative 0.5 comma 2 comma 4.5 comma dot dot dot

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