This is just stuff you have to memorize, I can’t really explain much further than product always means multiplication. The “product of” means k*m
This problem already gave us the slope and y-intercept, so all that's left to do is plug those two values into slope-intercept form.
Slope-Intercept Form: y = mx + b
---m is the slope
---b is the y-intercept
y = 8/3x + 5
Hope this helps!! :)
Yes, it is the longest river
x3 - 6x2 - 8x - 3
—————————————————
x - 1