Answer:
y = -3x - 5
Step-by-step explanation:
The equation of a line is given as either:
where m is the slope, and b is the y-intercept.
or
where given that you have a point (x, y), y₁ is the y-value of the point, m is the slope, and x₁ is the x-value of the point.
We can just plug in the point (0, -5) into the second equation and -3 for the slope.
<em>However,</em> (0, -5) tells us that this point must be a <u>y-intercept</u>, since the x-value of that point is 0. So, we can also just plug into the first equation -5 for the y-intercept and -3 for the slope.
So, we get:
y = -3x + (-5)
Which simplifies into:
y = -3x - 5
Answer:
(x / 9) - 7
Step-by-step explanation:
a quotient is the quantity produced by the division of two numbers.
For example: 4/24=6 (6 is the quotient)
Answer:
40 feet by 80 feet.
Step-by-step explanation:
If the length is L and the width is W, we have:
L = 2W.
So as the length of the fencing is 160 feet:
L + 2W = 160
Substituting for L:
2W + 2W = 160
W = 40 feet.
L = 2W = 80 feet.
Use the formula (zy)i<span> = (y</span>i<span> – ȳ) / s </span>y<span> and calculate a standardized value for each y</span>i<span>. Add the products from the last step together. Divide the sum from the previous step by n – 1, where n is the total number of points in our set of paired data. The result of all of this is the correlation coefficient </span>r<span>.</span>
