How do you tell if a equation is linear or non linear

Using your own words, explain direct and inverse proportionality. (Be sure to use complete sentences.)

Which answer correctly estimates the product of 79.623 * 4.83? about 40 about 400 about 40,000 about 4,000

What effect does "a" have on a fuction f (x) = a (x-h) ^2+k

The variable x is twice the value of the variable y and the sum of x and y is 42 solve for x and y.

Beth wants to paint her rectangular night stand that is 42 inches long and 28 inches wide a quart of paint covers about 350 square inches. how many quarts of paint will Beth need to cover the entire night stand

The scale of the map is messing the actual distance from library to the west quill is 72 miles and it is 6 inches on the map what is the scale of the map

Solve the equation 11x^2=-10x-11

What two numbers add to 4 and multiply to 1

What is 2 to the 12 power simplified

The length of each side of a cube is increased by a factor of 4. What is the effect on the volume of the cube? A) The volume of the cube increases by a factor of 64. B) The volume of the cube increases by a factor of 16.