Question

Help please!
Problem below!(:

Answer 1

you are given the x values - just plug those into the equation and compute on your calculator that will give you the delta-y values.....the changes in x from 25 to 25.1 for instance (0.1) are the delta-x values. The slope is the change in y over the change in x or delta-y/delta-x and you should have your answers.

Answer 2

I tried that, and I came out with the wrong answers, i dont know what i'm doing wrong... @kantalope

Answer 3

so what did you get for the first one?

Answer 4

10.00999002

Answer 5

ok so the difference between that and at 10 is .00999002

Answer 6

okay... what do i do with that now?

Answer 7

to calculate slope you take the change in y and divide by the change in x
the x changed from 25 to 25.1 or by .1 so I was thinking you divide the .00999 by .1 but now I'm rethinking that...there might be another step I'm forgetting

Answer 8

where is 0.1 coming from?

Answer 9

the first point checked was x=25 the second point x=25.1

Answer 10

right the equation is\[\frac{ f(x{2}) - f(x1) }{ x2 - x1 }\]

Answer 11

the actual slope at 25 is 1/10 so that is pretty close the other ones should be closer

Answer 12

Ok i get it for the 25.1 and 25.01
how do i do it for 24.9 and 24.99

Answer 13

@kantalope