Exploring Rational Expressions in Elmhorst Math STAAR Study

Miss Elmers provides a comprehensive math tutorial covering various topics such as data set comparison, fractions, area calculations, percentages, graphing, unit conversion, and equivalent expressions. The video is designed to reinforce sixth-grade math concepts through practical examples and problem-solving exercises.

What does 'X' represent in a data set?

• Input

• Additive factor

• Multiplicative factor

• Output

What indicates a multiplicative relationship between data sets?

• Dividing by a constant value

• Multiplying by a constant value

• Subtracting a constant value

• Adding a constant value

How do you calculate the area of a trapezoid?

• Base x Height

• Pi x Radius squared

• Length x Width

• 1/2(Base1 + Base2) x Height

What does 'each' indicate in a problem involving work hours and pay?

• Addition

• Subtraction

• Multiplication

• Division

What does a fraction represent in mathematical operations?

• Addition

• Subtraction

• Multiplication

• Division

What is the area of a triangle with a base of 1.5 and height of 1.25?

• 3.75

• 2.8125

• 1.875

• 0.9375

How do you convert feet to inches?

• Divide by 3

• Multiply by 3

• Multiply by 12

• Divide by 12

Which expression is equivalent to 1/4 times 4?

• 0.25

• 4

• 16

• 1

What percentage of time was the main character on stage during a 90-minute play if they were on stage 80% of the time?

• 108 minutes

• 80 minutes

• 90 minutes

• 72 minutes

Which graph represents y = 3.5x?

• A horizontal line

• A parabola opening upwards

• A line passing through (0,0) and (1,3.5)

• A line passing through (0,0) and (2,7)