Answer:
Slope =
Equation of the line →
Step-by-step explanation:
Let the equation of diagonal OA is,
y = mx + b
Here, m = Slope of the line OA
b = y-intercept
Slope of a line passing through two points and
is given by,
m =
Therefore, slope of the line passing through O(0, 0) and A(3, 4) will be,
m =
m =
Since, line OA is passing through the origin, y-intercept will be 0.
Therefore, equation of OA will be,
Answer:
Option c. 18 withdrawals is correct
Step-by-step explanation:
Gareth has to invest = $2,000
His local bank gives 2.2% annual interest and gives him the ability to make ATM withdrawals without any charges.
In an online savings gives 4.85% annual interest, but charges $3 every time he makes an ATM withdrawal.
Let us find the amount of interest earned from the local bank.
The amount of interest earned from Local Bank = 2.2% of 2000
= × 2000
= 0.022 × 2000 = $44
The amount of interest earned from online savings = 4.85% of 2000
= × 2000
= 0.0485 × 2000 = $97
As it is given that savings account has no ATM withdrawal charges but online savings account charge $3.00 per withdrawal.
so we need to make x withdrawals from both accounts such that:
97 - 3x = 44
Let us solve for x.
Upon subtracting 97 from both sides of or equation we will get,
97 - 97 - 3x = 44 - 97
3x = -53
x = 17.666 rounded to 18
Therefore, Gareth must make 18 ATM withdrawals every year for the local savings account to be a better deal than the online savings account.