Answer:
The slope is 3/2 or 1.5
Step-by-step explanation:
The slope is Rise/Run.
The difference in y-values, –1 -(-4) =3 is the rise.
the difference in x-values, 3 –1 = 2 is the run.
These are just sketches, you should polish them yourself. In analogy to relations, I will write aFb to mean the statement f(a) = b.
(a) aFa, so f(a) = a. This is the definition of the identity function.
(b) aFb => bFa, so f(a) = b and f(b) = a. Therefore f(f(a)) = a by substitution, and hence f^2 is the identity function.
(c) aFb and bFc => aFc. So f(f(a)) = c, and f(a) = c. Thus f(c) = c, which is the identity. Make sure you sort out the im(F) stuff when you clean this up.
Answer:
2.809 × 10^11
Step-by-step explanation:
When you multiply two numbers in scientific notation, you can multiply them in any order. Multiply the two numbers that are between 1 and 10. If the number is still between 1 and 10 you are set. Then just multiply the two tens-with-exponents numbers. Multiply them by adding the exponents.
If you are allowed to use a calculator that has an EE button, it will help you enter numbers in scientific notation. Or even and x^y button or y^x button to enter the 10 to any power.
The long and tedious way, but that possibly may help you understand is to write out the numbers in Looooong form and see that you are just multiplying everything all together. Scientific notation is a shortcut from having to write very big or very small numbers. You can get this! Hope this helps!