You should use this method
Step-by-step explanation:
•a reflection and a dilation
Answer:
3
Step-by-step explanation:
The f^-1 notation indicates you need to find the inverse of the function
y=2x+1
x=2y+1
Exchange the x & y variables. Note this is what accomplishes that reflection across the line y = x
7=2y+1
-2y=1-7
-2y=-6
Divide both side of the equation by -2
negative divide negative is positive so
y=3
8x+y=18
Y=3x-22
8x+3x-22=18
11x=40
X=40/11
Y=3×40/11-22
Y=-122/11
X=40/11
Y=-122/11
X+8y=17
X=y+8
Y+8+8y=17
9y=9
Y=1
X=1+8
X=9
Y=1
9x+y=58
Y=2x-8
9x+2x-8=58
11x=66
X=6
Y=2(6)-8
Y=12-8
Y=4
X=6
X+8y=21
X=2y+1
2y+1+8y=21
10y=20
Y=2
X=2 (2)+1
X=5
Y=2
