1. an equation of a line perpendicular to the line represented by the equation y=-1/2x-5 and passing through (6,-4) is
a. -1/2x+4
b. -1/2+1
c. y=2x+14
d. y=2x-16

2. consider the line given by the equation 5x+2y=8. which of the following gives the equation a line parallel to the given line but with a different y-intercept
a. y=-5/2x+4
b. y=-5/2x+8
c. y=-2/5x+4
d. y=-2/5x+8

3. which two lines are perpendicular?
a.) 2x-y=5 b.) 2x+y=3 c.) y=2x+3
a. a and b
b. a and c
c. b and c
d. none of the equations are parallel

4. which kine is perpendicular to the given line? y=2/5x-3
a. 5x+2y=4
b. y=2/5x+3
c. -2/5x+y=5
d. 2x+5y=3

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.