Sneha
Asked 4 years ago

SG chevron_right Grade: N/A chevron_right Strand: N/A

Heinsberg principle

Replies 0

shida
Asked 4 years ago

SG chevron_right Primary 5 chevron_right Fractions

Hi...can anyone please help? I managed to get the ans for b. But not sure on solving the A part..

Replies 2
Madhu S

do u understand?

4 years ago
shida

Yes...thanks

4 years ago
shida

Yes...thanks

4 years ago

shahira
Asked 4 years ago

SG chevron_right Secondary 5 chevron_right Number and Algebra

Can someone teach me how to do this i don't even understand what does my teacher explain about it

Replies 5
MAPLES

(i)

4 years ago
MAPLES

(i)

4 years ago
MAPLES

(ii)

4 years ago
MAPLES

(iii)

4 years ago
MAPLES

In part b , P and Q are not clear

4 years ago

Jonas Toh
Asked 4 years ago

SG chevron_right Secondary 2 chevron_right Number and Algebra

Idk what the question means(graph)

Replies 2
Madhu S

It means every 2cm on the graph (one big box) is 1 unit. So since u need values of x from -3 to 2, ur units will be -3 ,-2, -1, 0, 1, 2 for the x value. so example u mark 1, then 2cm to the right will be 2. do u understand? and for every x value just input into the y=2x+2 to get your y value range

4 years ago
Madhu S

sorry my graph is just a sketch, but hope u get the idea. between every unit there should be 2cm spacing. plot the points and the graph is a straight line that shld pass through all points (linear -- gradient = 2). for the second part, u need to show your workin on the graph. when x = 1.5 so u mark the part where it x =1.5, then draw a dotted/dashed line upwards until it intersects with your original graph, and then u find the y value at the intersection. it should be y=5. for when y =-1, u do the same thing, find the marking for y=-1 and draw a dotted/dashed line until u meet the original graph and find the corresponding x value by drawing another dotted line toward the x value. it shld be x=-1.5

4 years ago

Dion Lee
Asked 4 years ago

SG chevron_right Grade: N/A chevron_right Strand: N/A

q10

Replies 1
Eugene See

Hi Dion,if you still need the help, combining your knowledge with previous part,it would help a lot more to visualise if you can draw all 4 points out and what exactly is ‘projection of c onto b’. *Hint: it has something to do with line OC somehow being on line OB. If you are still confused, PM and let me help you further. :)

4 years ago

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