SOLUTION: A line cuts the x-axis at 4 and goes through the point (2; 4). The equation of the line is?

Algebra ->  Linear-equations -> SOLUTION: A line cuts the x-axis at 4 and goes through the point (2; 4). The equation of the line is?      Log On


   

Question 1071238: A line cuts the x-axis at 4 and goes through the point (2; 4). The equation of the line is?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The two points one described and other given, are (4,0) and (2,4). One way to get the equation is plot the points and draw the line. Measure slope m and read the y-intercept b, and fit into y=mx+b.


Stuffing everything together still needing to be simplified is this:

y=%28%284-0%29%2F%282-4%29%29x%2B%284-%28%284-0%29%2F%282-4%29%29%2A2%29


graph%28300%2C300%2C-3%2C8%2C-3%2C8%2C-2x%2B8%29