Evaluating a Linear Function

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Taught by mrbrianmclogan
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Part of video series
Meets NCTM Standards:
Lesson Summary:

This lesson teaches how to evaluate a linear function by plugging in values for x. The function is represented by a relationship between the input and output, which is determined by a formula. By substituting the given value for x into the formula, the output value can be calculated. The lesson also covers how to simplify expressions with binomials.

Lesson Description:

Evaluating a linear function

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Questions answered by this video:
  • If f(x) = 4x -5 evaluate (i)f(3) (ii) f( 9/2 ) (iii) f ( a + 3 )