Question

Help! Algebra!

Answer 1

The graph below shows the value of Edna's profits f(t), in dollars, after t months:

Answer 2

@amoodarya @Astrophysics @Teddyiswatshecallsme @UsukiDoll @Elsa213

Answer 3

What is the closest approximate average rate of change for Edna's profits from the 18th month to the 21st month?

Answer 4

that is the approximate slope of the graph for t=18 to t=21

Answer 5

approximately 45 / 3 per month

Answer 6

Three dollars per month
Nine dollars per month
13.75 dollars per month
41.25 dollars per month

So, 13.75?

Answer 7

yes

Answer 8

@phi what do you think?

Answer 9

find the (x,y) points on the parabola at x=18 and x=21
then find change in y divided by change in x
change is x will be 21-18 = 3

Answer 10

So, it's 3?

Answer 11

no. what is the y value at x= 18 ?

Answer 12

the line is pretty thick so its not easy to read it accurately

Answer 13

About 5?

Answer 14

it looks like it is on the x-axis, so y=0 at x=18
what is the y value at x= 21 ?

Answer 15

41.25

Answer 16

so the change in y is 41.25 - 0 = 41.25
now find the slope
change in y divided by change in x

41.25/3 = ?

Answer 17

A number.

Answer 18

LOL, JK, 13.75

Answer 19

which is roughly what welsh explained up above
the answer depends on how accurately you can read the graph.

Answer 20

Well, welsh answered first, so, I'm gonna have to give the medal to him, sorry.

Answer 21

Thanks!