Answer:
The amount is $1480.24
Step-by-step explanation:
We are given
he puts $1000 in a savings account earning 4% annually after 10 years
so,
P=1000
r=4%=0.04
t=10
now, we can use formula

now, we can plug values


So,
The amount is $1480.24
Umm... not sure what her mistake is, but it should be 5.49+1.11=6.6
So remember that paralell lines have the same slope
y=1/4x-6
1/4=slope
so we set up a new equation in slope intercept form
y=mx+b
m=slope
b=y-intercept
y=1/4x+b
one solution si (-1,5) where x=-1 and y=5
subsitute
5=1/4(-1)+b
5=-1/4+b
add 1/4 to both sides
5+1/4=21/4=b
the answer is y=1/4x+21/4