Answers edited by Rohan N.

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Why is the ordinary least squares method used in a linear regression?
A line passes through $(4, 3)$ $(4 ,3 )$ and $(2, 5)$ $(2 ,5 )$ . A second line passes through $(5, 6)$ $(5 ,6 )$ . What is one other point that the second line may pass through if it is parallel to the first line?
How do you find the vertex of $y = x^{2} + 10 x + 21$ $y=x^2+10x+21$ ?
How would one complete the square: $x^{2} + 6 x +$ $x^2 + 6x +$ _?
How do I find the asymptotes of $y = \frac{1}{(x - 1) (x - 3)}$ $y=1/((x-1)(x-3))$ ?
What is the slope of any line that is perpendicular to a line with a slope of $- \frac{4}{3}$ $-4/3$ ?
What is the implicit derivative of $1 = \frac{x}{y} - e^{x y}$ $1= x/y-e^(xy)$ ?
How do you simplify $\frac{2 x y^{0}}{3 x^{5}}$ $\frac { 2x y ^ { 0} } { 3x ^ { 5} }$ ?
How do you multiply $\frac{\sqrt{2}}{\sqrt{10}}$ $sqrt 2 / sqrt 10$ ?
How do I perform linear regression on data?
How do you find $f^{- 1} (x)$ $f^-1(x)$ given $f (x) = - \frac{1}{x^{2}}$ $f(x)=-1/x^2$ ?
How do you graph using the intercepts for $- x + 3 y = - 5$ $-x+3y=-5$ ?
How do you find the domain and range for $y = - sin 0.25 x$ $y = -sin 0.25x$ ?