Y = a + bx
The graph and accompanying table shown here display 12
observations of a pair of variables (x, y).

The variables x and y are positively correlated, with a correlation
coefficient of r=0.97.

You estimate the slope of the least squares regression line, y= a + bx,
for these data values to be b = 2. What is the y-intercept, a, of the
least squares regression line? Round your answer to the nearest
tenth.

x3 6 8 9 9 13 | 15 | 18 20 | 21 | 23 | 23
y9 17 15 15 24 29 36 43 | 39 | 46 55

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

show da graph

step-by-step explanation:

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)