Question 486887
Y = -8/5x + 41/5
{{{ graph( 300, 200, -10, 5, -10, 20, -8x/5 +41/5) }}} (graph 300x200 pixels, x from -10 to 5, y from -10 to 20, -8x/5 +41/5). 

The graph shows that your line equation is incorrect.
You calculated the correct value for M=0.
Why did you change it to-8/5x?
Youalso know that the Y Intercept is 18.1
Thus the equation is y=0x+18.1
{{{ graph( 300, 200, -10, 5, -10, 20, y = 18.1) }}} (graph 300x200 pixels, x from -10 to 5, y from -10 to 20, y = 18.1).