Answer:
whats the graph???
Step-by-step explanation:
where is the s in here though
From the graph shown it can be seen that the bridge is represented by a parabola with vertex of (5, 8) and roots of 1 and 9.
Recall that the vertex form of the equation of a parabola with vertex (h, k) is given by

Thus, the equation of the given graph in vertex form is given by

Also, recall that the equation of a parabola with roots, p and q, is given by

Thus the equation of the given graph can be given by

To get the value of a, we equate both equations and solve as follows:

Therefore, the <span>function that Lindsay used to create her design is

</span>
Answer:
7) 2 hours 30 minutes
8) 5280 yards
9) 65 people
10) 192 cups
11) 74%
12) 15
13) D
HOPE IT HELPS
Step-by-step explanation:
7) 4 miles = 30 minutes
8 miles = 1 hour
12 miles = 1 hour 30 minutes
16 miles = 2 hours
20 miles = 2 hours 30 minutes
8) 1 miles = 1760
2 miles = 3520
3 miles = 5280
9) convert percentage into decimals
25% = .25
260 * .25 = 65
10) 1 gallon = 16 cups
12 x 16 = 192
11) 52:70*100
(52*100):70
5200:70 = 74.29
12) 60% / 100 = .6
.6 x 25 = 15
13) 1 liter = 1000 ml
18.75 x 1000 = 18750
18750 / 8 = 3750
The answer is <span>1) ± √x+81
</span>
Step 1: Substitute y for f(x). <span>
Step 2: </span>Since every (x, y) has its partner (y, x)y switch x and y.
Step 3: <span>Solve for y.
Step 1.
The function is: f(x) = x</span>² - 81
Substitute y for f(x): y = x² - 81
Step 2.
Switch x and y: x = y² - 81
Step 3.
Solve for y (which is now f⁻¹(x)): f⁻¹(x) = y
x = y² - 81
y² = x + 81
y = +-√(x+81)
Therefore, the choice 1) is correct.