493 prompts matching "IGCSE word problem: Where two lines intersect"
Explain back: Solving by multiplying through by the inverse matrix
I have just studied solving by multiplying through by the inverse matrix in my SS3 Mathema
Worked example: Solving a 2 by 2 system by the matrix method
Act as my SS3 Mathematics tutor. Take me through one full worked example on solving a 2 by
WAEC pitfalls: Writing the coefficients out of order in the matrix
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on writing
Teach me: The shape of a quadratic graph, and what the sign of a does to it
You are my personal SS3 Mathematics tutor. Teach me the shape of a quadratic graph, and wh
Worked example: Sketching a quadratic from its factorised form
Act as my SS3 Mathematics tutor. Take me through one full worked example on sketching a qu
Explain back: Rearranging an equation so it can be solved from a drawn curve
I have just studied rearranging an equation so it can be solved from a drawn curve in my S
WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on giving
Explain back: Shading the feasible region on a graph
I have just studied shading the feasible region on a graph in my SS3 Mathematics class. Le
Worked example: Testing the vertices of the feasible region
Act as my SS3 Mathematics tutor. Take me through one full worked example on testing the ve
WAEC pitfalls: Ignoring the non-negativity constraints
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on ignorin
Teach me: Drawing a frequency polygon from a frequency table
You are my personal SS3 Mathematics tutor. Teach me drawing a frequency polygon from a fre
Explain back: Plotting a cumulative frequency curve at the upper class boundaries
I have just studied plotting a cumulative frequency curve at the upper class boundaries in
Worked example: Estimating the median from a cumulative frequency curve
Act as my SS3 Mathematics tutor. Take me through one full worked example on estimating the
WAEC pitfalls: Reading the quartiles off the wrong axis
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on reading
Teach me: Mean deviation, and what it measures
You are my personal SS3 Mathematics tutor. Teach me mean deviation, and what it measures,
Explain back: Why the absolute value is taken in mean deviation
I have just studied why the absolute value is taken in mean deviation in my SS3 Mathematic
Worked example: The mean deviation of an ungrouped data set
Act as my SS3 Mathematics tutor. Take me through one full worked example on the mean devia
WAEC pitfalls: Dividing by the wrong number of items
Act as my SS3 Mathematics tutor. Show me the mistake candidates most often make on dividin
Teach me: When a pie chart suits data better than a bar chart
You are my personal SS3 Mathematics tutor. Teach me when a pie chart suits data better tha
Explain back: Drawing a bar chart with equal bar widths
I have just studied drawing a bar chart with equal bar widths in my SS3 Mathematics class.