Table $1.$ Potential Subscriptions and Prices for Cube Dash

Price $($P$)$

Subscriptions $($Q$)$

Price $($P$)$

Subscriptions $($Q$)$

$$25\mathrm{.}00$

$20\mathrm{.}0$ million

$$15\mathrm{.}00$

$24$

$$22\mathrm{.}50$

$21\mathrm{.}0$ million

$$12\mathrm{.}50$

$25$

$$20\mathrm{.}00$

$22$ million

$$10\mathrm{.}00$

$26$

$$17\mathrm{.}50$

$23$ million

$$7\mathrm{.}50$

$27$

Note: Demand function is a linear relation of Q to P$.$ Also, you do not need worry about the unit of price and subscriptions. Just use the numbers given for deriving the demand function.

$($a$)$ Given the information provided, try to figure out the demand function for Cloud storage.