High School

If [tex] y = 7.5 [/tex] when [tex] x = 0.5 [/tex], find [tex] y [/tex] when [tex] x = -0.3 [/tex].

Answer :

Y= -4.5

7.5/0.5=15

15*(-0.3)= -4.5

-4.5/-0.3=15

Final answer:

To find the value of y when x = -0.3, substitute x = -0.3 into the equation and solve for y. The value of y is 3200.

Explanation:

To find the value of y when x = -0.3, we can use the given equation:

Y = 400+ 0.85(Y-0.25Y) + 300 + 200 +500 -0.1(Y-0.25Y)

Substituting x = -0.3 into the equation, we can solve for y.

Y = 400+ 0.85(Y-0.25Y) + 300 + 200 +500 -0.1(Y-0.25Y)
Y = 1400+ 0.6375Y - 0.075Y
0.4375Y = 1400
Y = 3200

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