Use point-slope form.
But first let's find the slope.
(4, 2), (2, 4)
m = y2-y1/x2-x1
m = (4 - 2)/(2 - 4)
m = 2/-2
m = -1
So this is the slope, now we can plug this into the equation along with any point.
y - y1 = m(x - x1)
Where y1 is the y-value of the point, x1 is the x-value, and 'm' is the slope.
Let's plug in point (4, 2):
y - 2 = -1(x - 4)
This can be one of your options.
Distribute -1:
y - 2 = -x + 4
Add 2 to both sides:
y = -x + 6
This can be another of your options.
Add 'x' to both sides:
x + y = 6
This can be another of your options.
9:3 3:1 6:2
1:9 2:18 4:36
6:10 12:20 24:40
Answer: g = 40f
Step-by-step explanation:
Since one water filter will clean 40 gallons of water, the equation that can be used to find g, the total number of gallons that will be cleaned by any number of filters f will be gotten by multiplying f by 40. This will be:
g = f × 40
g = 40f
For example, the gallons of water that 4 water filters will clean will be:
= 40f
= 40 × 4
= 160 gallons
Answer:
2 and 1/2 = 2.5
2.5 divided by 3 = 0.83
0.83 x 2 = 1.66 or 1 and 2/3 gallons of paint left
Step-by-step explanation:
Hope this helps! Have a nice day!
