Question 1138710

Find the line equation for the x intercept of 4 and a y intercept of -7. I have the correct answer but my professor wants a more detailed explanation with slope formula and step by step details. I have submitted twice already and she wants more. Help!
<pre>Correct response:    x-intercept results in point: (4, 0)
                     y-intercept of - 7 results in the point: (0, - 7)
Slope formula: {{{matrix(1,9, "m,", or, slope, "=", (y[1] - y[2])/(x[1] - x[2]), 
"=====>", (0 - - 7)/(4 - 0), "=", 7/4)}}} 
Using the slope-intercept form, or y = mx + b, and along with the y-intercept of - 7, we get: {{{highlight_green(matrix(2,3, y, "=", mx + b, y, "=", (7/4)x - 7))}}}
<b>OR</b>
Use the POINT-SLOPE formula: {{{highlight_green(matrix(1,3, y - y[1], "=", m(x - x[1])))}}}, along with any of the 2 stated points to get the same equation.