Answer the following questions attached..

The gradients of perpendicular lines have a negative reciprocal gradient.

a) If A = 4, then the gradient of the line perpendicular to A would be -

b) If B = -3, then the gradient of the line perpendicular to B would be

c) If C = , then the gradient of the line perpendicular to C would be -

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

tube or goog would be a great resource to with that question