393 prompts matching "Using y minus y one equals m times x minus x one"
Worked example: Multiplying a 2 by 3 matrix by a 3 by 2 matrix
Act as my SS3 Mathematics tutor. Take me through one full worked example on multiplying a
Explain back: The inverse of a 2 by 2 matrix and the formula for it
I have just studied the inverse of a 2 by 2 matrix and the formula for it in my SS3 Mathem
Spot my mistake: Forgetting to swap the leading diagonal when inverting
Act as my SS3 Mathematics tutor. Work a question on forgetting to swap the leading diagona
Worked example: Verifying an inverse by multiplying back to the identity
Act as my SS3 Mathematics tutor. Take me through one full worked example on verifying an i
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
Spot my mistake: Multiplying by the inverse on the wrong side
Act as my SS3 Mathematics tutor. Work a question on multiplying by the inverse on the wron
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
Explain back: The line of symmetry and the turning point
I have just studied the line of symmetry and the turning point in my SS3 Mathematics class
Spot my mistake: Plotting a point from the wrong row of the table
Act as my SS3 Mathematics tutor. Work a question on plotting a point from the wrong row of
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
Spot my mistake: Reading the intersection off the wrong axis
Act as my SS3 Mathematics tutor. Work a question on reading the intersection off the wrong
Worked example: Solving a quadratic graphically by adding a straight line
Act as my SS3 Mathematics tutor. Take me through one full worked example on solving a quad
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
Spot my mistake: Shading the wrong side of a boundary line
Act as my SS3 Mathematics tutor. Work a question on shading the wrong side of a boundary l
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
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
Spot my mistake: Plotting cumulative frequency at the class midpoint
Act as my SS3 Mathematics tutor. Work a question on plotting cumulative frequency at the c
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
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