Need answer fast! the graph shows the daily revenue earned selling coupon cards in a fundraiser if the price is decreased by x dollars. which function can be used to determine the daily revenue if the price of a coupon card is decreased by x dollars?

From given graph we see that points forms a parabolic shape that means we can use quadratic model to find the equation whose formula is given by:

where (h,k) represents vertex.

From graph we see that vertex is (3,49).

Hence h=3 and k=49

Plug these values into above formula

we get:

Now we need to find the value of a, so we can plug any point say (5,45) then we get:

Plug value of a, h and k into above formula, we get:

which best matches with first choice

Hence final answer is

asadsadsad

step-by-step explanation:

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4