Question

A line passes through the point (1,6) and has a slope of -9 . Write an equation for this line

Answer 1

please help!!

Answer 2

Do you know the equation

y=mx+b

for all straight lines?

Answer 3

I am to write the equation

Answer 4

I fully understand that.

The equation y=mx+b is a general equation for ALL straight lines.

We need to know that before we can solve your question.

Do you recognise that equation?

Answer 5

no, i'm lost

Answer 6

\(\bf \begin{array}{lllll}
&x_1&y_1\\
&({\color{red}{ 1}}\quad ,&{\color{blue}{ 6}})\quad
\end{array}
\\\quad \\

slope = {\color{green}{ m}}= -9
\\ \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}\)

Answer 7

ok, thx

Answer 8

I'm not sure you truly understand that.

You need to study some more about straight lines before trying this question

(The formula I gave is basic to this subject so oyu need ot understand that before trying the answer.

THIS page is a good starting place:

http://www.mathsisfun.com/equation_of_line.html

Answer 9

ok,thx