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Proportion: Quiz 8
Proportion: Quiz 8
1) y is directly proportional to the square of x. When y is 18a, x is 3.
a) Show that the equation for y in terms of x is:
a) Show that the equation for y in terms of x is:
b) Find the value of y when x is 4.
2) i is inversely proportional to the square of j. When i is 50, j is 3a.
a) Show that the equation for i in terms of j is:
2) i is inversely proportional to the square of j. When i is 50, j is 3a.
a) Show that the equation for i in terms of j is:
b) Find the value of j when i is 18.
c) Find the value of i when j is 6a.
3) y is inversely proportional to x3. When y is 8, x is 3a.
a) Show that the equation for y in terms of x is:
b) Find the value of x when y is 3.375.
4) p is directly proportional to the cube of q. When p is 400, q is 2a.
a) Show that the equation for p in terms of q is:
4) p is directly proportional to the cube of q. When p is 400, q is 2a.
a) Show that the equation for p in terms of q is:
b) Find the value of q when p is 1,350.
c) Find the value of p when q is a.
c) Find the value of p when q is a.