8th Grade Unit 4 Lesson 3 Quiz

In the hanger model, if the weight of the triangle is 6, what is the weight of the square?

• 15

• 6

• 9

• 12

Which operation was used to transform the equation from 6x to 2x on the left side?

• Divide by 2

• Multiply by 2

• Subtract 4x

• Add 4x

What was Andre's first step in solving the equation 2x + 6 = 3x - 8?

• Subtracted 3x from both sides

• Subtracted 6 from both sides

• Added 3x to both sides

• Added 6 to both sides

If x is 2, what is the corresponding value of y in the equation 3x + y = 15?

• 15

• 6

• 12

• 9

What is the slope of the line that passes through the points (2, 9), (4, 3), and (3, 6)?

• -3

• 3

• -1

• 1

Which situation could have negative, zero, or positive solutions?

• Temperature of an oven on a hot day

• Number of students remaining in school

• Elevation of a hiker descending into a canyon

• Height of a candle as it burns

Why can't the number of students remaining in school be negative?

• Students can leave and return

• Students can be counted twice

• Students can be invisible

• Negative students don't make sense

What is the smallest possible height of a candle as it burns?

• Zero

• Negative

• Positive

• Infinite

In which situation is it possible for the solution to be negative?

• Bank account balance

• Height of a candle

• Temperature of an oven

• Number of students

What is the temperature of an oven on a hot summer day if it is not being used?

• Undefined

• Negative

• Zero

• Positive