Step-by-step explanation:
Slope =y3 - y1 / x2 - x1
Put the values and the answer will come
Answer= X>3
5x>15
Divide both sides by 5x

5x will cancel with 15. You get 3
So, x>3
Let the balance = Y and the number of weeks = x
She takes out 15 per week, so multiply 15 by x ( the number of weeks) to get 15x.
You would then want to subtract that from the amount she started with in her account.
The equation becomes: Y = 150 - 15x
The slope of the line is -2/-5