We need to find m and b to find in the equation of a line:
y = mx + b
↑ <span>↑
slope y-intercept
To find m, the slope, we need to find the rise over the run of the line. You pick two points and use the y values finding the difference of them and do the same for the x values and put them on the bottom. Let's use the points (0, -2) and (4, 0):
</span>↑ ↑<span>
(x₁, y₁) (x₂, y₂)
m = (y</span>₂ - y₁)/(x₂ - x₁)
m = (-2 - 0)/(0 - 4)
m = (-2)/(-4)
m = 1/2
The slope is positive since the line is going upward from left to right.
Now we need b, the y intercept, where the line intersects with the y axis, simply by looking at the graph. b is -2.
Thus, the answer is C. y = 1/2x - 2.
A=(psr^2)/360
360A=psr^2
s=(360A)/(pr^2)
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
we have 18,000 people
growth 2% per year
time=11 years
18,000*2/100=360 growth per year
360*11=3,960.00
18,000+3,960=14,960
From the values in the table, we can multiply the speed by the time to find out the amount of miles she travels a day. This is shown below:
30 mph * 2.5 hours = 75 miles
40 mph * 1.875 hours = 75 miles
50 mph * 1.5 hours = 75 miles
60 mph * 1.25 hours = 75 miles
Therefore, she travels 75 miles to work. Given a speed of 24 mph, we divide 75 miles by 24 to find out how long it takes her to travel that far:
75 miles / 24 mph = 3.125 hours
