Waecmaths

loading...
Title waecmaths question
Question 33

If y varies directly as the square root of (x +1) and y = 6 when x =3, find x when y = 9

Question 16

If x varies inversely as y varies directly as z , what is the relationship between x and z

Question 43

If x and y are variable and k is a constant , which of the following describes an inverse relationship between x and y

Question 33

G varies directly as the square of H. If G is 4 when H is 3, find H when G = 100

Question 4

The distance, d, through which a stone falls from rest varies directly as the square of the square of the time, t, taken. If the stone falls 45 cm in 3 seconds, how far will it fall in 6 seconds.

Question 31

If $x\propto (45+\tfrac{1}{2}y)$ which of the following is true

Question 4

If $p\propto \frac{1}{q}$  which of the following is true

Question 18

The table below satisfies the relation $y=k\sqrt{x}$ , where k is a positive constant.

x

1

4

p

y

0.5

1

2.5

Question 19

The table below satisfies the relation $y=k\sqrt{x}$ , where k is a positive constant. Use it to answer  18 and 19

x

1

4

p

y

0.5

1

2.5

Question 48

If $y\propto \frac{1}{{{x}^{2}}}$ and y = 1¼  when x = 4. Find the value of y when x = ½