PLEASE ANSWER ASAPPP!! To join a health club, a person must pay a $75 one-time fee plus a charge of $30 per month This situation can be represented by an equation of the form y=mz+b where x is
the time in months and y is the total cost in dollars What is the rate of change of the equation?
30
B 45
c75
D105

A. 30

Step-by-step explanation:

y=mz+b

b=75

m=30

ROC(rate of change)=slope

ROC=30

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v