I don’t think it would work it you solved for k instead of y. Because you’re solving for y when you do constant of proportionality. i’m not sure if i’m right or not but that’s what i think.
You have to solve the given expression for q:

This expression has a quadratic term, which means that it is a quadratic equation. To find the value or values of q, you have to use the quadratic equation, using "q" as the variable instead of "x"

Where
a is the coefficient of the quadratic term
b is the coefficient of the q term
c is the constant
- First, zero the equation by passing 3q to the left side of the equal sign:

For this equation the coefficients are:
a= 2
b= -3
c= -8
Replace them in the formula and solve:

Next, to determine each possible value of q, you have to solve the sum and difference separately:
Sum

Difference

The possible solutions for the given equation are q=2.9 and q=-1.4
Y=-4 is linear, anything not linear would be a quadratic in this instance
Answer:
yes it is 2/3
Step-by-step explanation: