3,400-1,020/10-3=340 and I am assuming looking at the choices that the RPM is 1,530 im not sure how to get that so that eliminates choices D. and E. I am not sure what order the formula is supposed to be represented.
The diameter for d is <===================3 Thank You! <3
Would that make the answer A. then?
S(D) = 340D and 1530 RPM
nO ITS D
Ok but how do I solve it?
S as a function of D means S is the dependent variable (usually y) and D is independent (usually x) S(D) = mD + b where m = slope and b = y-intercept you solved m = 340. Plug in one of the points 3400 = 340(10) + b b = 0 \(S(D) = 340D\) is the function, so you're correct for the first question. For the second, plug in 4.5 for the diameter \(S(4.5) = 340(4.5) = 1,530 ~rpm\)
@peachpi thank you :)
So then that makes A. S(D) = 340D and 1530 RPM the answer then?
Thanks again :)