The starter and exit quiz of the lesson “Changing the subject to suit the context”, from the unit “Expressions and formulae” (Year 9 Maths) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
For the linear equation y=5x-7, you can call y the __________ of the equation.
Which of the below are correct rearrangements of the formula V=a\times{l} ?
Make y the subject of the equation 8y-3x=24.
Make e the subject of {{c+d}\over{e}}=f.
Make d the subject of {{c-d}\over{e}}=f.
Make a the subject of {5\over{a+b}}=c.
You can divide both sides of the formula s\times{t}=d by t to make s the __________.
s={d\over{t}} can be rearranged as s\times{t}=d and t={d\over{s}}. Which arrangement is the most useful if you know time and speed and wish to calculate distance?
Which of these arrangements of the formula for area of a circle is most useful if you know the area and wish to find the radius?
Which rearrangement of the linear equation 6x+7y=126 should you use if you know the x coordinate and wish to find the y coordinate?
What is the gradient of the straight line with the linear equation 5y-2x=30 ?
The gradient of a straight line is -{5\over3} and the y-intercept is (0,20). Give the equation of the line in the form ax+by=c.
