A) Measurement of People's Left foot (in inches):
30, 34, 35, 38, 40
Measurement of People's forearm (in inches):
14, 17, 18, 21, 23
b) My Two points = (30, 14) & (34, 17)
Rate of change, m = y2-y1/x2-x1
m = 17 - 14 / 34 - 30
m = 3 / 4
c) In order to form an equation, take any point, let say (14, 30)
y - y1 = m(x - x1)
y - 30 = 3/4 (x - 14)
y - 30 = 3x/4 - 10.5
y = 3x/4 + 19.5
Where, y = Length of left foot
x = Length of forearm
When x = 17 ft, it would be:
y = 3(17) / 4 + 19.5
y = 12.75 + 19.5
y = 32.25 Ft
Hope this helps!
answer is (-7,2)
y = -x -5
y= x+9
Both equations have y on the left hand side
So we equate both equations
We replace -x-5 for y in the second equation
-x -5 = x+9
Subtract x on both sides
-2x -5 = 9
Now add 5 on both sides
-2x = 14
Divide by -2 from both sides
x = -7
Now plug in -7 for x in the first equation
y = -x -5
y = -(-7) -5= 7-5 = 2
So answer is (-7,2)
You can make $0.49 but using 1 quarter 1 dime 2 nickels and 4 pennies.
Answer:
The correct option is;
D) Neither the domain restriction nor the expression for f⁻¹(x) is correct
Step-by-step explanation:
The given function can be written as follows;
f(x) = x² - 331
The inverse of the function f(x), which is f⁻¹(x), can be found as follows;
Let f(x) = x² - 331 = y, we have;
f(x) + 331 = x²
x = √(f(x) + 331)
We replace x with f⁻¹(x) and f(x) with x, to get;
f⁻¹(x) = √(x + 331)
We note that the domain of the inverse function will include values from x ≥ -331, and the correct inverse function √(x + 331) ≠ √x - 331
Therefore, we have that neither the domain restriction nor the expression for f⁻¹(x) is correct.
I think you need to put a graph tell me if im wrong.