How do I write an equation of direct variation using two given coordinate points?

I have two questions on my algebra homework that relate to direct variation and I can't remember how to use it.

Help? (find the missing side)

Find the missing side of the triangle below. Estimate answer to one decimal place.          A          b =4        C          x x x x x x x x           x 60°          x            x          ... more

Find the length of the angle

In a 58° - 32° right triangle, the side adjacent to the 32° angle is 41.74 inches. If tan58° = 1.6003, find the length of the side opposite the 32° angle. Estimate your answer to 3 decimal places.

What is the equation of the parabola with vertex (-5, 4) and focus (-2, 4)?

What is the equation of the parabola with vertex (-5, 4) and focus (-2, 4)?

01/06/17

Profit maximization

A firm faces the demand schedule P=184-4q and the TC function TC=q3-21q2+160q+40   What output will maximize profit?   What will maximum profit be?

01/05/17

How long to fill the pool with just the hose?

It takes 12 hours to fill a pool using a pipe. It takes 8 4/7 hours to fill it using a pipe and a hose. How long will it take to fill the pool using just the hose?

If a # b and1/x+1/a=1/b,then x

*# tht sign is supposed to be two vertical lines crossed by one horizontal slanting line

01/05/17

An angle of 20 radians is equivalent to many degrees.

An angle of 20 radians is equivalent to many degrees.

01/05/17

Write the standard form equation for each parabola

Vertex (6 , -10) and focus (23/4 , -10)

01/04/17

Find the actual distance represented by 1 cm to write the scale of a map with the key 2/5cm = 8km

 4t2v6vvcqr34rc4qt53gqgqg(Dont need one just answer question plz)

01/04/17

Describe the transformation

Describe the transformation in each graph: a. g(x) = f(x) ­-1 b. h(x) = ­-f(x) c. p(x) = f(x + 2) D. q(x) = -f(x+2)-1

01/04/17

it is about a square and area

Points E and F are chosen on sides BC and AB respectively of the square ABCDso that the lines DE and DF divide the square into three regions of equal area. Thesides of the square have length 1,then... more

01/02/17

What is the X-coordinate of the vertex: f(x)=|x+5|+3?

This question is on my Algebra 2 Final Review.

01/02/17

How do you solve this problem?

What are the dimensions of the lightest open-top right circular cylindrical can that will hold a volume of 10003?

01/01/17

Factorizing

How to make factors of following     a2-2ax+x2-4b2       9a2-c2-4cx+4x2

12/31/16

Integration

How to integrate following   ∫x(x+1)1/2 dx   ∫2x(x2+1)dx

12/31/16

Differentiation

∫(48x − 0.4x −1.4) dx

12/27/16

use Mean Value Theorem Ιcosx-1Ι<ΙxΙ for all x

ΙCOSX-1Ι≤ΙXΙ using The Mean Value Theorem

find all values of h 9x^2-3x+3h=0

h=   ? 

12/22/16

Simplification

Solve ∛8x4/y and get this answer 2x ∛xy2/y

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