5x + 9y = 0
to find the x int, sub in 0 for y and solve for x
5x + 9(0) = 0
5x = 0
x = 0
to find the y int, sub in 0 for x and solve for y
5(0) + 9y = 0
9y = 0
y = 0
the reason u cannot use just the intercepts is because the line goes through the origin (0,0)....The intercepts coincide giving u only 1 point...and that is not enough to graph a line
B is your y intercept on the graph.
The data is not linear. From (3, 1) to (7, 2), we add 4 to the x-value and add 1 to the y-value. This pattern continues for a little while, however, from (11, 3) to (18, 5), we add only 7 to the x-value even though we added 2 to the y-value. Given this information, we can determine that this is not linear data.
Around 2488 dollars
Explanation:
If we set
x
to be the amount of money she deposited initially, then we get an equation:
x
⋅
1.06
12
=
5000
1.06 because her money is multiplied by 106% every time, and to the power of 12 because interest is compounded 3 times per year for 4 years.
So just solve for
x
:
x
=
5000
1.06
12
x
=
5000
2.01
[2.01 is approximate]
x
≈
2488