Math Application Questions - Bloom's Taxonomy

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Questions and Answers

If a function $f(x) = 3x^2 - 2x + 5$ is transformed by applying a vertical shift of 4 units upward, what is the new function?

  • $f(x) = 3x^2 - 2x + 9$ (correct)
  • $f(x) = 3x^2 - 2x + 1$
  • $f(x) = 3x^2 - 2x + 8$
  • $f(x) = 3x^2 - 2x + 7$

A rectangle has a length that is 3 times its width. If the perimeter of the rectangle is 48 units, what is the width?

  • 4 units
  • 8 units (correct)
  • 12 units
  • 6 units

What is the area of a triangle with a base of 10 units and a height of 5 units?

  • 15 square units
  • 50 square units
  • 30 square units
  • 25 square units (correct)

A student scored 75%, 85%, and 90% on three tests. What score does the student need on a fourth test to achieve an average of 80%?

<p>70% (C)</p> Signup and view all the answers

If the equation of a line is given by $y = 2x + 3$, what is the slope of the line?

<p>2 (B)</p> Signup and view all the answers

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Study Notes

Function Transformation

  • Original function: ( f(x) = 3x^2 - 2x + 5 )
  • Vertical shift of 4 units upward alters the function to: ( f(x) + 4 = 3x^2 - 2x + 9 )

Rectangle Perimeter and Dimensions

  • Rectangle's length is 3 times its width: Let width be ( w ), then length = ( 3w )
  • Perimeter formula: ( P = 2(\text{length} + \text{width}) ) gives ( 48 = 2(3w + w) )
  • Simplified to ( 48 = 8w ), yielding ( w = 6 ) units for the width

Area of Triangle

  • Area formula: ( A = \frac{1}{2} \times \text{base} \times \text{height} )
  • For base of 10 units and height of 5 units: ( A = \frac{1}{2} \times 10 \times 5 = 25 ) square units

Average Score Calculation

  • Scores: 75%, 85%, 90% on three tests
  • Total score from three tests: ( 75 + 85 + 90 = 250 )
  • To achieve an average of 80% across four tests: ( \text{Target total score} = 4 \times 80 = 320 )
  • Required score on fourth test: ( 320 - 250 = 70 )

Slope of a Line

  • Given line equation: ( y = 2x + 3 )
  • The slope-intercept form indicates the slope is ( 2 )

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