SOLUTION: The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope? 1/3 or 2/3 or 3/2 or 1/2

Algebra ->  Linear-equations -> SOLUTION: The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope? 1/3 or 2/3 or 3/2 or 1/2      Log On


   

Question 1067814: The line passes through points (4,7) and (-5,-5), where the line intersects the y axis, what is the slope? 1/3 or 2/3 or 3/2 or 1/2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
y-7=%28%287-%28-5%29%29%2F%284-%28-5%29%29%29%28x-4%29

y-7=%2812%2F9%29%28x-4%29

y=%284%2F3%29%28x-4%29%2B7

y=%284%2F3%29x-16%2F3%2B7

y=%284%2F3%29x-16%2F3%2B21%2F3

highlight%28y=%284%2F3%29x%2B5%2F3%29

SLOPE: 4%2F3
y-axis intercept: 5%2F3