Ten Quick Questions Higher B

The _______ is the smallest value that would round up to the estimated value.

• Upper bound

• Error interval

• Lower bound

• Minimum value

The _______ is the value where you stop rounding down and begin rounding up.

• Upper bound

• Error interval

• Lower bound

• Minimum value

The ______tells us the range of numbers that we could have had before the number was rounded.

• Upper bound

• Error interval

• Lower bound

• Minimum value

What is the form for a linear graph?

• y=mx+c

  where m is the y intercept and c is the gradient.

• y=mx+c

  where m is the gradient and c is the y intercept.

• y=mx²+c

  where m is the gradient and c is the y intercept.

• y=mx²+c

  where m is the y intercept and c is the gradient.

Two linear graphs will be parallel when...

• The y intercepts are the same

• The gradient has the same digit but one is negative and one positive.

• The gradient is the same.

• The gradient is the negative reciprocal.

Two linear graphs will be perpendicular when...

• The y intercepts are the same

• The gradient has the same digit but one is negative and one positive.

• The gradient is the same.

• The gradient is the negative reciprocal.

When writing bearings you need to check that it satisfies which rules? (There is more than one answer)

• It is written as an angle

• It is measured from the zero point

• It is measured from a North

• It is written as a three digit angle

• You have written the clockwise angle.

Which of the following are the methods for solving quadratic equations? (There is more than one answer)

• Using the quadratic formula

• Using factorising

• Completing the square

• Using the difference of two squares

When drawing a histogram what goes up the y axis?

• The frequency

• The frequency density

• The midpoint

• The class width

To calculate the mean from a table, you have multiply the value (or midpoint) by the frequency and add these together. You then need to divide by...

• The number of groups

• The largest value

• The total frequency

• The total of the midpoints