Answer:
A. (1, -5), (2, -1), (-1, 7)
Step-by-step explanation:
Reflecting a function over the x-axis:
When a function is reflected over the x-axis, the x-value stays the same, while y changes the signal, so the transformation rule is:
To find the range:
We apply the transformation to the points in the domain. Thus:
Thus the correct answer is given by option a.
Create a proportion: 4/7=x/392
Cross multiply: 7x=1568
Divide: 1568/7=224
x=224
You get extraneous solutions anytime the radical becomes undefined under the set of real numbers. for example
does not exsist since the radical cannot be used on a negative number
When an amount differs from a fixed amount such as the mean
Answer:
Step-by-step explanation:
x+20=11x+30 minus x from both sides
20=10x+30 minus 30 from both sides
-10=10x divide by 10
x= -1
