Linear function f(x) = x is graphed on a coordinate
plane. The graph of a new line is formed by changing
the slope of the original line to and the y-intercept
to -1. Which statement about the relationship
between these two graphs is true ?

the answer to question 1 is -8, 28.

step-by-step explanation:

the value of x is 28.2

answer: $53750

steps:

list the principal and interest after the n-th year:

n       principal   simple interest

1     12500     375

2     25000     750

3     37500     1125

4     50000     1500

sum: $50000     $3750

total at end of year 4: $53750

1/3

step-by-step explanation:

2/4 x 9/9 = 18/36

1/3 x 12/12 = 12/36 - smallest fraction

3/6 x 6/6 = 18/36

7/9 x 4/4 = 28/36