G5 TBC

Question 1

If theres a line AB and a point P some distance from that line but not above or below it, what line would be the closest distance from P to AB

Answer 1

The perpendicular line from P to AB

Question 2

How does a vector work

Answer 2

its like a fraction in a bracket, removing the line separating the numerator and denominator. The top number signifies how much it has moved on the x axis (ie: +3 on x) and the bottom is for the y

Question 3

If a question says

“Enlarge triangle A by a scale factor of -2, centre is 2, 2” wyd

Answer 3

You mark the centre (2,2). Then you record the vector of how you get from the centre of enlargement to ONE of the points. Then you get that and multiply both the top and bottom number by the scale factor (-2). Then say that result is (-4 -2) then you go from the centre and move 4 spaces left and 2 down. Then you repeat for all points

Question 4

If a question asks on how you can describe a transformation, and its a change in position (not rotation) between 2 shapes wyd

Answer 4

you say its a translation of shape A by the vector (state the vector of how much it has moved by).

Question 5

If a question asks how you can describe a transformation and its a change in rotation wyd

Answer 5

you say its a transformation of shape A by x degrees around the point (a,b)

Question 6

How do you rotate a shape around a point without tracing paper

Answer 6

See the distance from one point in the shape to the point of origin. Then mirror that point off depending on how many degrees the rotation is and sorta bounce it off. Repeat for rest

Question 7

How do you add subtract multiply and divide(?) vectors

Answer 7

You just add/subtract/…. both top numbers and both bottom numbers

Question 8

If 2 vectors are scale factors of each other (line vectors so AB - with the arrow on top) what does it mean

Answer 8

they are parallel