Notes

A straight line means that

• the 2 variables, x& y change at a constant rate (correct answer, your response)
• the 2 variables, x& y change at different rates
• there's no way to tell if x and y are related
• x and y are not related

Points earned: 5 out of 5

x y
3 6
4 8
5 10

If the above numbers represent points on a line, what is the slope
of the line?

• 4
• 3
• 5
• 2 (correct answer, your response)

Points earned: 5 out of 5

The BEST definition of slope is

• rise over run (correct answer, your response)
• the tilt of a line
• manipulated variable / respondingvariable
• x/y

Points earned: 5 out of 5

If Sam wanted to see how the height of a ramp affected the speed of a marble going down the ramp- the speed of the car is

• responding variable (correct answer, your response)
• independent variable
• manipulated variable
• testing variable

Points earned: 5 out of 5

A science fact that never changes is a (n)

• scientific theory
• testing module
• scientific law (correct answer, your response)
• hypothesis

Points earned: 5 out of 5

The manipulated variable is

• the variable the scientist changes (correct answer)
• the variable that might change (your response)
• a way to anaylize a graph
• used to measure living things

Points earned: 0 out of 5

In the equation, y= mx + b, m represents

• a point along the line (your response)
• where the line crosses the x axis or the x intercept
• where the line crosses the y axis or the y intercept
• slope (correct answer)

Points earned: 0 out of 5

On a graph the manipulated variable goes on the

• along the line (your response)
• along the slope
• x axis (correct answer)
• y axis

Points earned: 0 out of 5

A science fact that might changed or be tweaked is called a(n)

• testing module
• scientific law
• hypothesis
• scientific theory (correct answer, your response)

Points earned: 5 out of 5

Ben is adding fertilizer to pumpkin plants to see if they will grow. He used the same amount of water, same soil and same amount of sunlight. The water, soil and sunlight are

• responding variable
• hypothesis
• control (correct answer)
• manipulated variable (your response)

Points earned: 0 out of 5

Ben is adding fertilizer to pumpkin plants to see if they will grow. The plant growth is

• new variable
• manipulated variable
• hypothesis
• responding variable (correct answer, your response)

Points earned: 5 out of 5

If a line is represented by the equation,
y= mx +b
the line is _____________


• straight (correct answer, your response)
• negative
• curved
• flat, then curved

Points earned: 5 out of 5

In the equation, y= mx + b, b represents

• a point along the line (your response)
• where the line crosses the x axis or the x intercept
• where the line crosses the y axis or the y intercept (correct answer)
• slope

Points earned: 0 out of 5

The point (0, 0) is also called the

• origin (correct answer, your response)
• co-ordinate
• x axis
• y axis

Points earned: 1 out of 1

346.0 mm is how many cm?

• 0.3460 cm
• 3460 cm (your response)
• 3.460 cm
• 34.60 cm (correct answer)

Points earned: 0 out of 5

If Sam wanted to see how the height of a ramp affected the speed of a marble going down the ramp- the height of the ramp is the

• testing variable
• responding variable
• manipulated variable (correct answer)
• independent variable (your response)

Points earned: 0 out of 5

The responding variable is

• used to measure living things
• the variable that might change (correct answer, your response)
• the variable the scientist changes
• a way to anaylize a graph

Points earned: 5 out of 5

Ben is adding fertilizer to pumpkin plants to see if they will grow. The fertilizer is

• new variable (your response)
• manipulated variable (correct answer)
• hypothesis
• responding variable

Points earned: 0 out of 5

x y
7 10
11 16
15 22
19 28

• about 1.0
• about 1.50 (correct answer)
• about 2.1
• about 3.33 (your response)

Points earned: 0 out of 5

On a graph , the responding variable goes on the

• y axis (correct answer)
• x axis
• along the line
• along the slope (your response)

Points earned: 0 out of 5