Reflect across y axis means that you replace x with -x
f(-x)=2(-x)=-2x
g(x)=-2x
de graph is the one that passes through (0,0) and (1,-2) and -1,2)
Answer:
x= -5/2
Step-by-step explanation:
4 - (2x+4)=5
4-2x-4=5
-2x=5
x=-5/2
This one is similar to the previous one.
Answer:
The area of this figure is 24mm.
Step-by-step explanation:
4mm*3mm=12mm
1mm*6mm=6mm
3mm*4mm=12mm/2mm=6mm
6mm+6mm+12mm=24mm
Answer:
XY = 10 cm
Step-by-step explanation:
XY is a midsegment and is half the length of the 3rd side DE, that is
XY =
DE =
× 20 = 10 cm