Question

PLEASE HELP! (ALL MULTIPLE CHOICE)

Which equation represents a line perpendicular to the graph of the line -2y=4x+10

A) y=x+6
B) y=-1/2x+6
C)y=2x+6
D)y=-2x+6

The expression (x-4)^2 is equivalent to
A)x^2-16
B) x^2+16
C) x^2-8x+16
D) x^2+8x+16

Answer 1

ALSO THIS ONE PLEASE!

Answer 2

IT IS MULTIPLE CHOICE QUESTION (PDF FILE BECAUSE IT HAS A GRAPH)

Answer 3

The answer to the second question is C

Answer 4

i thought it was A

Answer 5

start off by solving -2y=4x+10 for y

-2y=4x+10

y=4x/(-2)+10/(-2)

y = -2x - 5

Answer 6

the slope of y = -2x - 5 is -2

anything perpendicular to this will have a slope of 1/2 (flip the fraction and flip the sign)

Answer 7

so the answer would be A?

Answer 8

assuming A is a typo and it should have 1/2x, then yes

Answer 9

so it would not be -1/2x+6? It was not a typo.

Answer 10

and can u help me with the attached file in the comments? It is an absolute value

Answer 11

the slope of the perpendicular line is positive (since the original line has a negative slope)

Answer 12

i see
i will ask my teacher
can u @jim_thompson5910 help me with the absolute value screenshot in the comments. it is a multiple choice graph

Answer 13

The arrows mean you multiply those things