a. Use the fact that x=39 when y=-117 to find the constant of variation and write the equation of variation.
b. Find the value of x when y= -132.
+118677 Hi Solveit,
I think it is reasonable to assume that this is a direct variation question.
a. Use the fact that x=39 when y=-117 to find the constant of variation and write the equation of variation.
b. Find the value of x when y= -132.
\(y=kx\\ -117=k*39\\ k=\frac{-117}{39}\\~\\ y=\frac{-117}{39}*x\\ When y = -132\\ -132=\frac{-117}{39}*x\\ -132*\frac{-39}{117}=x\\ x=\frac{132*39}{117}\)
132*39/117 = 44
When y=-132 x=44
+118677 Hi Solveit,
I think it is reasonable to assume that this is a direct variation question.
a. Use the fact that x=39 when y=-117 to find the constant of variation and write the equation of variation.
b. Find the value of x when y= -132.
\(y=kx\\ -117=k*39\\ k=\frac{-117}{39}\\~\\ y=\frac{-117}{39}*x\\ When y = -132\\ -132=\frac{-117}{39}*x\\ -132*\frac{-39}{117}=x\\ x=\frac{132*39}{117}\)
132*39/117 = 44
When y=-132 x=44
