Answer:
Can you be more specific, like y is what and k is what because it tells us what x is but not the rest.
Step-by-step explanation:
<span>(2x-5)(x+7)
Distribute .....
</span><span>(2x-5) (x+7)
2x^2 + 14x - 5x - 35
Combine like terms....
2x^2 + 9x - 35 is the answer </span>
Slope: -3
y-intercept: (0,7)
When your doing tax the tax is 9.25 you divide that by 100
the add that to your price then 12.5 divided by 100 and subtract that from what you ended up with so you should come out with a total of 4.22
The tangential line at a certain point is just the derivative so.
. At the point (1,6) we plug the x value in and get the slope at the point (y ' = 2)
The tangential line at that point is
y - 6 = 2(x - 1) (this is the answer)
