Question

Which equation in point-slope form represents a line with m=-1/2 that goes through the origin?
A) y=1/2x
B) y=-1/2x
C) y+1=-1/2 (x+1)
D) y-1=-1/2 (x-1)

Answer 1

Are the given coordinates?

Answer 2

*there

Answer 3

No

Answer 4

Well there has to be more info given :/

Answer 5

That was the whole problem :(

Answer 6

\(\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({\color{red}{ 0}}\quad ,&{\color{blue}{ 0}})\quad \impliedby origin

\end{array}
\\\quad \\
% slope = m
slope = {\color{green}{ m}}= -\cfrac{1}{2}
\\ \quad \\
% point-slope intercept
y-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values}\\
\qquad \uparrow\\
\textit{point-slope form}\)

Answer 7

Would that be B?

Answer 8

do you think you can check out my account and help me with mine