math determine lines/slopes

[emmy2003]

determine the equation of tyhe line in y-intercept form that passes thrpugh a(4,5), b(3,7)

 

[jsterkel]

Please show your work, and explain where you are stuck.

Do you know the formula to find the slope?

Hint: http://www.google.com/#hl=en&sugexp=tsh&cp=12&gs_id=x&xhr=t&q=equation+to+find+slope

 

[pka]

determine the equation of tyhe line in y-intercept form that passes thrpugh a(4,5), b(3,7)

Given two points $\displaystyle (x_1,y_1)~\&~(x_2,y_2)$ the slope of that line is $\displaystyle m=\dfrac{y_1-y_2}{x_1-x_2}$.

The y-intercept is $\displaystyle \left(0,y_1-mx_1\right)$