Question

Mr. Hess teaches third grade. For every day his class behaves well, he puts $1 in the class pizza party fund, which is a function of well-behaved days.

Which kind of function is the pizza party fund?

A. quadratic B. exponential C. linear D. constant

Answer 1

y = (1)x
This is a linear equation, so I'd go with C

Answer 2

Suppose there are already $ b in the class Pizza's fund.

Now suppose the students behave well for x days.

Mr Hess puts a dollar for every day they behave well.

So for x days he shall put $1 times x days = $x

So the total fund in the class pizza's fund shall be $ (x + b)

Let this accumulated fund be represented by y.

So we have

y = x + b

This is a linear function.

So Pizza party fund is a linear function.

Option C) is the right answer.