Answer:
4.046 m
Step-by-step explanation:
To find the inverse function of a function, you rearrange for the x term (could be some other letter) and then swap the function and the x at the end. For example,
and so,
For part 3 we have
and hence,
Can you do part 4 on your own?
Yes, f(x) = 16 - 7x is a linear function because there are no exponents and the rate of change (which is the slope) only adds or subtracts a certain number each time.
Answer:
x = -3 or x = -2
Step-by-step explanation:
Our equation is: .
We see that all three terms are multiples of 3, so let's just divide both sides by 3 to simplify: . We now have: .
To factor this, we want to look at the pairs of factors of the constant 6 and see which pair will add up to 5 (from the 5x). After some searching, we can easily see that 3 * 2 = 6 and 3 + 2 = 5, so this is the pair we're looking for. Then, we factor: .
Finally, to solve, we know that if x + 3 = 0 or if x + 2 = 0, then the product will be 0, so: x + 3 = 0 --> x = -3 OR x + 2 = 0 --> x = -2
Thus, the answer is: x = -3 or x = -2.
Hope this helps!