A problem of positive proportion function in grade two of junior high school It is known that y + m is proportional to x-n, and when x = 2, y = 3; when x = 1, y = - 5. Find the value of y when x = - 1

A problem of positive proportion function in grade two of junior high school It is known that y + m is proportional to x-n, and when x = 2, y = 3; when x = 1, y = - 5. Find the value of y when x = - 1

Because y + m is proportional to x-n
Let y + M = q (x-n)
3+m=q(2-n) 1
-5+m=q(1-n) 2
1-2, q = 8
If we take q = 8 into 1, we get 8N + M = 13
When x = - 1, y = 8 (- 1-N) - M = - 8n-m-8 = - 21

Elden Ring Premiere

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