Answer:

Step-by-step explanation:

reduced
transformed the expression to make it easier
add
reduce
I hope this helps you
y=x^2-81
x^2=y+81
x=square root of y+81
f^-1 (x)= square root of x+81
We are given the following quadratic equation

The vertex is the maximum/minimum point of the quadratic equation.
The x-coordinate of the vertex is given by

Comparing the given equation with the general form of the quadratic equation, the coefficients are
a = 2
b = 7
c = -10

The y-coordinate of the vertex is given by

This means that we have a minimum point.
Therefore, the minimum point of the given quadratic equation is
Answer:
Step-by-step explanation:
<u>The scale is </u>
- 15 in ÷ 24 feet =
- 15 in ÷ 24*12 in =
- 15 in ÷ 288 in =
- 5 in ÷ 96 in =
- 5 ÷ 96
Answer:
Step-by-step explanation:
x > 3 reads x is greater than three. This includes all numbers to the right of three, but not three itself. |₋₋|₋₋|₋₋₀---|---|---|---|---|---|----->
0 1 2 3 4 5 6 7 8 9
x ≤5 reads x is less than or equal to five. This includes all numbers to the left of and including the number 5 <--|---|---|---|---|---|---|--•₋₋₋|₋₋|₋₋₋|₋₋₋|₋₋₋₋
-2 -1 0 1 2 3 4 5 6 7 8 9
x ≥ -4 reads x is greater than or equal to minus four. This includes all numbers to the right of and including -4.
|₋₋₋|₋₋₋|₋₋₋•---|---|---|---|---|---|---|-->
-7 -6 -5 -4 -3 -2 -1 0 1 2 3