The slope of the line is 
Explanation:
Given that a coordinate plane with a straight line passing through the points 
, 
and 
We need to determine the slope of the line.
The slope of the line can be determined using the formula,
Since, the points , and lie on the straight line and the slope of all the points in a straight line have the same slope.
Hence, let us consider the points and
Let us substitute these points in the slope formula, we have,
Simplifying, we get,
Dividing, we get,
Hence, the slope of the line is
The circumference of a circle is found by using the equation: C= 2 x PI x r
Both circles have r = 1
Circumference = 2x 3.14 x 1 = 6.28.
Diameter is 2 times the radius= 2x1= 2
The ratio of the circumference to the diameter = 6.28 / 2 = 3.14 which is the value of PI
Answer:
15
Step-by-step explanation:
52 divided by 3 1/3 is 15 1/3, so it would last for 15 days
Let y be the temperature
Let m be the rate of temperature drop in degrees per hour
Let x be the number of hours elapsed since 8PM
The initial temperature (at x = 0) is 0
y = mx
Four hours from 8 PM, the temperature was -16.8 degrees
-16.8 = m(4)
m = -4.2 degrees per hour
At 9PM, one hour will have elapsed.
y = -4.2(1)
y = -4.2 degrees
