Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (majesty69):
For the graphed function f(x) = (4)x - 1 + 2, calculate the average rate of change from x = 2 to x = 4.
OpenStudy (majesty69):
OpenStudy (majesty69):
−68
−30
68
30
OpenStudy (majesty69):
Like is said I put 68......
OpenStudy (anonymous):
\[\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (majesty69):
@dan815 @Jamierox4ev3r
OpenStudy (majesty69):
But where does the 68 and 30 come from?
OpenStudy (anonymous):
are you sure the equation is f(x)=4x-1+2?
OpenStudy (majesty69):
\[(4)^{x-1}+2\]
OpenStudy (anonymous):
oh simply find what is y when x is 2 and 4 then use the slope formula to find the average change
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I wrote the slope formula above.
OpenStudy (majesty69):
Im so confused :(
OpenStudy (anonymous):
Since you are doing it from x=2 to x=4 first plug 2 in the equation. Whatever you get it's your y so you will have 1 point (x1,y1). Then plug 4 to the the other one and you will have (x2,y2). Then you use this 2 points to plug them in on the slope formula from above which asks y2-y1 / x2-x1.
OpenStudy (anonymous):
still confuse?
OpenStudy (majesty69):
(6,66)
?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
wait how did you get 6,66?
OpenStudy (majesty69):
as x,y
OpenStudy (anonymous):
the first point should start with (2,y) and the second as (4,y)
OpenStudy (majesty69):
2,6 and 4,66?
OpenStudy (anonymous):
yes!
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
now plug them on the slope formula
OpenStudy (majesty69):
30?
OpenStudy (anonymous):
yep
OpenStudy (majesty69):
Thank YOU!
OpenStudy (anonymous):
no problem
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (majesty69):
Can you check one more? lol
OpenStudy (majesty69):
@Mateaus i think i have an the right answer
OpenStudy (anonymous):
sure, trow it out :p
OpenStudy (anonymous):
let me know the equation and x's and your answer to see if I get the same.
OpenStudy (majesty69):
What is the solution of \[\log_{3x-5} 16\] = 2
I got x=-3
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Your answer is almost right but still incorrect
OpenStudy (majesty69):
3? lol
OpenStudy (anonymous):
yeah haha
OpenStudy (anonymous):
(3x-5)^2 = 16
OpenStudy (anonymous):
3x-5 = sqrt 16
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
3x-5 = 4
OpenStudy (majesty69):
Okay
OpenStudy (anonymous):
3x = 9
OpenStudy (anonymous):
x = 3
OpenStudy (majesty69):
Thank You
Still Need Help?
Join the QuestionCove community and study together with friends!