If you can label your graph then I could a lot more, but
f(x) = 5x
Ordered pairs : (1,5) (0,0) (2,10)
Domain [0,infinity)
Range [0, infinity)
Mapping
0 0
1. 5
2. 10
3. 15
4. 20
5. 25
Given :
A shopkeeper earns a profit of Rs. 1 by selling a pencil and a loss of 20 paisa by selling an eraser.
To Find :
In a given day he had a loss of Rs. 10. On this day, he sold 35 pencils. How many erasers were sold on this day.
Solution :
Money earned by selling 35 pencils.
P = 35 × 1 = Rs 35 .
Now, it is given that he had a loss of Rs 10 .
Therefore, amount of loss done by money is :
E = 35 + 10
E = Rs 45
Now, number of erase sold :
Hence, this is the required solution.
Vertex- 0,4
Directrix- x=-6
This is my suggestions. There lots of graphing technology out there. I would use it to help with ur homework. ;)