Two significant figures.
The trailing zero is not significant
3x -2y=8
Y= 3/2 x- 4
Hence slope is 3/2
The line d (for example) is parallel to this line the slope of d = slope of this line = 3\2
Then equation of d : y =3/2 x - b
The point (-4,6) belongs to d
Y - 6 = 3/2 (x +4)
Y= 3/2 x + 6 +6
Y= 3/2x +12
Then the equation is : Y= 3/2x +12
If you use fractions, the answer you get will always be an exact answer in the form of a fraction. resorting to decimals means that you may run into rounding errors and therefore get only an approximate answer. e.g. the fraction 1/3 cannot be exactly represented by a decimal.fractions can be easier to represent the number rather then using decimals which involve writing out many numbers it does not affect the accuracy of the answer UNLESS you are rounding up and down the numbers
82.25 divided by 7 is 11.75. Each scarf costs 11.75, this is the unit price.
Answer:
Option B is correct
Step-by-step explanation:
A function has form of f(x) = 2x + 3, or y = 2x + 3
To find the inverse of f(x), we are going to represent x in form of y.
To do this, we try to send all components containing x to one side of expression and send the other components to the other side of expression.
Now, let's do it.
y = 2x + 3
We firstly send 3 to the right, change the sign of 3 from + to -, we have:
y - 3 = 2x
We then rearrange both sides to get a standard form:
2x = y - 3
We now divide both sides by 2 to get the expression of x:
(2/2)x = (y - 3)/2
We simplify both sides of expression to obtain final result:
x = (1/2)y - 3/2
=> Inverse of f(x) is x = (1/2)y - 3/2
=> Option B is correct
