Answer:
It is non linear
Step-by-step explanation:
Linear means that it goes at a constant rate (aka a straight line)
This graph does not have a straight line so it is non-linear
Answer:
15 is the constant
Step-by-step explanation:
Constant is a number which doesn't change.
In the equation 2x + 5y + 15, the term 15 is a constant.
Answer:
<h3>800 cm²</h3>
Step-by-step explanation:
Look at the picture.
We have three rectangles. The formula of an area of a rectangle:

l - length
w - width
Rectangle I:

Rectangle II:

Rectangle III:

The area of number 4:

Substitute:
