Find the equation in slope intercept form of the line that has slope 2 and passes through point 9, -2

y = 2x - 20

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = 2, hence

y = 2x + c ← is the partial equation

To find c substitute (9, - 2) into the partial equation

- 2 = 18 + c ⇒ c = - 2 - 18 = - 20

y = 2x - 20 ← equation in slope- intercept form

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.