The correlation coefficient of a scatter plot with line of best fit shown will be the slope of the line.
We can eliminate last 2 choices because the line is clearly a downward sloping line and it's slope wont be positive.
From the first two, it looks like the plot's slope is very close to -1. So we take -0.91, instead of -0.35. <em>[note: 0.91 is more steeper than 0.35 (which is very relaxed)]</em>
ANSWER: -0.91
Answer:
98°
Step-by-step explanation:
180° - 82° = 98°
Answer:
If Leo has d dollars, then Dale has 2d + 3
Step-by-step explanation:
If we say Leo has x amount of money. Now we say that Dale has $3 more (x + 3) then twice the amount of money Dale has. Twice the amount of money Dale has is equal to 2x. And so by having three more dollars than this amount would be equal to 2x + 3 or in this case 2d + 3. It may be more helpful to read the question and attempt it on your own before reading the options bc they may confuse you.
Hope this helps!
Answer:
dont know
Step-by-step explanation:
Answer:
c). y + x = 0
Step-by-step explanation:
The locus is a line perpendicular to the line connecting the 2 points and passing through the centre of the line.
The mid-point of the line connecting the given points is:
(a + b + a - b)/2 , (a - b + a + b) / 2
= (a, a)
It's slope = (a + b)- (a - b) / (a - b)- (a + b)
= 2b/ -2b
= -1
So the slope of the line we want is -1/(-1) = 1.
Using the point-slope form of a line:
y - y1 = m(x - x1)
y - a = 1(x - a)
y - a = x - a
x + y = 0
