## What does F circle G mean?

f ◦ g is the composition function that has f composed with g. Be aware though, f ◦ g is not the same as g ◦ f. (This means that composition is not commutative).

**How do you find F and G of a function?**

To find f(g(x)), we just substitute x = g(x) in the function f(x). For example, when f(x) = x2 and g(x) = 3x – 5, then f(g(x)) = f(3x – 5) = (3x – 5)2.

### What do you call the point F and G?

(The points “F” and “G” are called the foci of the ellipse) The idea of “Locus” can be used to create some weird and wonderful shapes!

**How do you read a GX?**

The composite function f [g (x)] is read as “f of g of x”. The function g (x) is called an inner function and the function f (x) is called an outer function. Hence, we can also read f [g (x)] as “the function g is the inner function of the outer function f”.

#### What is the composition of F and G?

The composition of two functions g and f is the new function we get by performing f first, and then performing g. For example, if we let f be the function given by f(x) = x2 and let g be the function given by g(x) = x + 3, then the composition of g with f is called gf and is worked out as gf(x) = g(f(x)) .

**How do you find the coordinates in math?**

To find out the coordinates of a point in the coordinate system you do the opposite. Begin at the point and follow a vertical line either up or down to the x-axis. There is your x-coordinate. And then do the same but following a horizontal line to find the y-coordinate.

## How do you work out coordinates?

STEP 1 – Draw and label the x and y axis. STEP 2 – Plot the coordinates (2,3). Remember the x (horizontal) is the first number in the brackets and the y (vertical) is the second number. Now plot the rest of the coordinates.

**What does ∘ mean in math?**

the composition operator

x. ′′ The two sides of the equation have the same mathematical meaning and are equal. The open circle symbol ∘ is called the composition operator. We use this operator mainly when we wish to emphasize the relationship between the functions themselves without referring to any particular input value.