Answer:
f(x) = x/4
Step-by-step explanation:
To find the inverse of a function replace the positions of x and y. Then isolate y.
y = 4x
x = 4y
x/4 = y
f(x) = x/4
Answer:
W = (18,0)
Step-by-step explanation:
I found the slope of the line from point M to point V. The slope is -3.875. I continued this slope starting with point V to find the coordinates of point W. The coordinates of point W are (18,0).
I graphed the coordinates and the line of VW on the graph below.
<h3>
Answer: 10 years old</h3>
Work Shown:
s = son's age
(father's age)/(son's age) = 9/2
45/s = 9/2
45*2 = s*9
90 = 9s
9s = 90
s = 90/9
s = 10
The son is 10 years old.
F(x) = x^4 + 7x^3 - 7x^2 - 43x + 42
f(1) = 1^4 + 7(1)^3 - 7(1)^2 - 43(1) + 42 = 1 + 7 - 7 - 43 + 42 = 0
Since f(1) = 0, therefore (x - 1) is factor.
The answer is 39 degrees.
