Question

if the slope of a line is 3 and a point on the line (1,-2) the y intercept of the line is at the point with coordinates______. show your work

What are the coordinates of the y intercepts of the line 2x-12y=3?show your work

Answer 1

http://www.mathsisfun.com/algebra/finding-intercepts-equation.html

Answer 2

as far as the 1st one, find teh equation of the line, slope of 3, point of (1, -2) \(\bf \begin{array}{lllll}
&x_1&y_1\\
&({\color{red}{ 1}}\quad ,&{\color{blue}{ -2}})\quad
\end{array}
\\\quad \\

slope = {\color{green}{ m}}= 3
\\ \quad \\

y-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values and solve for "y"}\\
\qquad \uparrow\\
\textit{point-slope form}\)