Just multiply the order pairs by 3. For example,
(2,0) times 3 = (6,0)
(3, -1) times 3 = (9,-3)
(-2,-5) times 3 = (-6, -15)
Use the horizontal line test.
If any 2 points along the curve of F(x) touch a horizontal line, then the inverse is NOT a function.
This is because if 2 points share the same 'y' value in F(x), then they would share the same 'x' values in the inverse function. This is not allowed for a function.
For the given curve, it passes the horizontal line test. Therefore the inverse IS a function.
Vertical: x=-1 and 2
Horizontal: y=-1
Answer:
Del paid £40 for the goods.
Step-by-step explanation:
It is given that:
Selling price of goods = £38
Loss = 5%
It means that,
Selling price = (100-5)% = 95%
Let,
x be the buying price.
95% of x = 38
Dividing both sides by 0.95x
Therefore,
Del paid £40 for the goods.
Answer:
$7.20 will be added
Step-by-step explanation:
Multiply 72 by 1.10
72 x 1.10=79.20
Subtract that by 72
79.20-72=7.20
