How to write an equation for the direct variation that includes the given point: (7, -2)?

Mira Branch

Mira Branch

Answered question

2023-03-11

How to write an equation for the direct variation that includes the given point: (7, -2)?

Answer & Explanation

Eugene Rich

Eugene Rich

Beginner2023-03-12Added 3 answers

Step 1
the initial statement is y x
to convert to an equation multiply by k the constant of variation
y = k x
Step 2
use the given point " (7,-2) to find k
y = k x k = y x = - 2 7 = - 2 7
the equation is | 2 2 y = - 2 7 x 2 2 | ̲ ¯

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