9. The table shows a linear relationship between x and y. x
y
-20
96
-12
60
-6
33
-2
15
What is the rate of change of y with respect to x?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial