A. -7/8x-3/2
B. y=7/8x+3/2
C. y=-8/7x+3/2
D. y=-3/2x+7/8
Hi I need help

Hi! your answer is A. -7/8x-3/2

Step-by-step explanation:

to find the slope of the line (-7/8) you count the x and y difference between the 2 points. It goes down 7 and right 8 units.

to find the y-intercept you just take it from the graph. The line crosses the y-axis at y=-3/2.

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.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204