Question

chase uses his phone primarily to take a lot of selfies. the storage space on his phone is limited, so chase needs to keep track of how many selfies he takes. there is a proportional relationship between the number of selfies chase takes, x, and the amount of storage (in megabytes) he uses taking selfies, y. write an equation for the relationship between x and y. simplify any fractions. y =

Explanation:

Step1: Find the constant of proportionality

For a proportional relationship $y = kx$, where $k$ is the constant of proportionality. We can use a point on the line. Let's take the point $(2,4)$. Then $k=\frac{y}{x}$. Substituting $x = 2$ and $y = 4$ into the formula for $k$, we get $k=\frac{4}{2}=2$.

Step2: Write the equation

Since $k = 2$, the equation for the proportional relationship between $x$ and $y$ is $y=2x$.

Answer:

$y = 2x$