When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection) to see where the new figure will be located.
Answer:
Step-by-step explanation:
<u>Given function is:</u>
Put x = 3
![f(3) =3(3)^2-4(3)+5\\\\f(3)=3(9)-12+5\\\\f(3)=27-12+5\\\\f(3)=15+5\\\\f(3)=20\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=f%283%29%20%3D3%283%29%5E2-4%283%29%2B5%5C%5C%5C%5Cf%283%29%3D3%289%29-12%2B5%5C%5C%5C%5Cf%283%29%3D27-12%2B5%5C%5C%5C%5Cf%283%29%3D15%2B5%5C%5C%5C%5Cf%283%29%3D20%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
12.5
Step-by-step explanation:
4+21=25
25/2=12.5
Answer: x= 25
Step-by-step explanation:
28+47+ y(some number)= 180
solve for y to get 75 and since 75=3x x=25
-35
Since the absolute value symbols are not around the negative sign, it is not effected. The absolute value of 35 is 35 and since the negative is not in the symbols, the answer is -35
