The direct variation equation relates x and y is y =
x
Step-by-step explanation:
Direct variation is when one variable is equal to a constant times another variable
If y varies directly with x, then
- y ∝ x
- y = k x is the equation of variation
- k is the constant of variation
∵ y varies directly with x
∵ y ∝ x
∴ y = k x
∵ y = 10 when x = 3
- Substitute these values in the equation above to find k
∴ 10 = k(3)
∴ 10 = 3 k
- Divide both sides by 3
∴ k = 
∴ The equation of variation is y =
x
The direct variation equation relates x and y is y =
x
Learn more:
You can learn more about variation in brainly.com/question/10708697
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Triangles are anything with three vertexes and three angles to it and are always closed.
Quadrilaterals are anything with four vertexes and four angles on them and are always closed. Examples include a square, rectangle, trapezoid etc.
Answer:
=15x2+8x−5
Step-by-step explanation:
Do you need an explanation!!