What is the equation of the line in slope-intercept form?
y = 3x - 7
y = - 1 3 x + 7
y=-3x - 7
y =

y=mx + b (slope intercept form) m= slope, b =y-intercept

slope=rise/ run

Step-by-step explanation:

The slope intercept form is a line (straight line)

y = 3x - 7  slope 3 (rise=3, run = 1), y-intercept = -7

y = - 1 3 x + 7 slope -13 , y-intercept = 7

y=-3x - 7 slope -3, y-intercept = -7

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.