Rachael’s backyard swimming pool is being emptied by a pump. the amount of water in the pool w in gallons at any time t in hours is given by the following equation: w = 9,000 – 250t. how many gallons of water are being pumped out each hour?

Ok so it is
W=origianl amount-amount taken out
amount taken out=amount taken out per hour times number of hours (t)
theref

250 gallons aer being pumped out every hour

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

Doesn't make sense try again