Answer:
see below. × signifies a wrong choice; → signifies a correct one
Step-by-step explanation:
× Jorge should graph in the vertical line with values of –4 for the line of reflection. (The line of reflection is horizontal.)
→ Jorge could count how far each pre-image point is from the line of reflection along the perpendicular from the point to the line of reflection.
× Jorge could count how far each vertex of the figure is from the y-axis and count the same distance on the other side. (He could do this pointless exercise, but it has no relation to the problem. The y-axis (x=0) is not the line of reflection.)
→ Jorge will not move any point that lies on the line of reflection. (All points on the line of reflection are reflected to themselves.)
→ Jorge could check his work by seeing if each segment joining a pre-image point with its image has the midpoint on the line of reflection. (This is what is meant by "line of reflection.")
× Jorge could check his work by making sure that the image has the same orientation as the original. (A reflected image as an orientation opposite that of the original, a fact you see every time you look in a mirror.)
Many students seem puzzled by function notation well after it has been introduced, and ask “why can’t we just write
y = 3x instead of
f(x) = 3x ?”. To motivate the use of function notation and improve understanding, I advocate using multi-variable functions instead of single-variable functions in introducing this notation. My introduction usually proceeds something like this:
Step-by-step explanation:
what makes it irrational is the
which does not change from one zero to the other. so if one root its irrational the other one also is. Answer A
Photo math helps me sm you should try it!!
Answer:
D. 10
Step-by-step explanation:
8x-14=5x+34
8x-5x=34+14
3x=48
x=48/3
x=16
8x-14+5y+16 = 180
8(16)-14+5y+16 = 180
128-14+5y+16=180
5y=180-128-16+14
5y=50
Y = 10
