Adirect variation function contains the points (–9, –3) and (–12, –4). which equation represents the function?

y = –3x or ,
y = –x/3 or,
y = x/3 or,
y = 3x .

(c)

Step-by-step explanation: Given that,

are two points contained in the function. Since it is a direct variation function, so it is a straight line passing through the given points.

Let,

So, slope of the line is given by

The equation of the line or the function is

Thus, (c)   is the correct option.

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc