• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Mathematics: Post your doubts here!

Messages
276
Reaction score
51
Points
38
guys, what is the equation for the distance of a line if given two coordinates ??? for example, (1,3) ( 9,4 ) ! how to measure the length ? was it square root of (x2-x1)squared + (y2-y1)squared ?
its square root of (X1-X2)squared + (Y1-Y2)squared
 
Messages
4
Reaction score
1
Points
3
Q9. first expand the equation it will become: X2+2PX+P2+Q
Then comparing the 2 equations 2PX=4X, therfore p is equal to 2
Then, P2+Q=-8, P is equal to 2, SO:
4+Q=-8, Q=-8-4=-12


Q18. (a) gradient= Y-diff/X-diff= 8/10= 0.8
(b)parrallel lines have equal gradients so gradient would equal to 0.8
(c)gradient equal to 0.8 (parrallel lines), therefore y=0.8x+C, taking point (3,1), 1=(0.8*3)+c, rearranging equation C=0.417


okay see ya later I'm going to my exam:p
 
Messages
4,152
Reaction score
12,461
Points
523
NAILED IT! FREAKING AWESOME!

According to XPC rules we can't discuss the answers now... but i'd love to talk to anyone who did it already although i have already confirmed all my answers :D
 

NIM

Messages
424
Reaction score
145
Points
53
NAILED IT! FREAKING AWESOME!

According to XPC rules we can't discuss the answers now... but i'd love to talk to anyone who did it already although i have already confirmed all my answers :D
i hav done d exam bt em confused in some of ma answers....
 
Top