How do I do this? It’s a constant of proportionality Graph. It says it ‘identify the constant of proportionality (k) for each graph and write the proportional relationship (y=kx). 20 points, 7th grade mathematics

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,