Question

this is confusing.... please help!



Write the equation of the horizontal or vertical line: (3, -4), slope is undefined.


y = 0

x = 3

x = -4

y = -4

Answer 1

Which of those passes through x = 3 or y = -4?

Answer 2

idk

Answer 3

do you know how to graph?

Answer 4

yeah...

Answer 5

then you know what a coordinate plane is, right?

Answer 6

nope

Answer 7

i didnt learn that

Answer 8

the coordinate plane is what the graph is called.

Answer 9

ohhhhh ok

Answer 10

ok... so if you know how to graph do you know how to graph the line "x = -4"

Answer 11

yes!

Answer 12

there is no y intercept meaning it only passes through the x axis

Answer 13

oh ok

Answer 14

then which of those line equations pass through (3,-4)?

Answer 15

x=3? i think...

Answer 16

you should be down to 2 choices

Answer 17

or y=0???

Answer 18

y = 0 is incorrect

Answer 19

so does that mean x=3 is correct?

Answer 20

x = 3 is a possible choice, but I won't say if it's correct or not yet

Answer 21

ok

Answer 22

there is one more choice that you need to rule out

Answer 23

before you can be certain

Answer 24

well idk it can u just tell me it

Answer 25

if x = 3 and that is a possible choice then obviously the only other choice would be the one that passes through y = -4

Answer 26

now, do you know what undefined means?

Answer 27

kinda ... not really

Answer 28

which one is it?

Answer 29

if a slope is 0 then it is horizontal

Answer 30

if a slope is undefined it is...?

Answer 31

vertical?

Answer 32

ding ding ding... now which one of the equations is a vertical line? :)

Answer 33

x = 3 or y = -4

Answer 34

y=-4

Answer 35

nope, y = -4 is horizontal

Answer 36

oh....

Answer 37

because it only passes through the y axis

Answer 38

so its x=3

Answer 39

Yurp. :)

Answer 40

ok

Answer 41

Now you can solve all of those questions with ease!

Answer 42

can u help me with my next questions???

Answer 43

"questions"?

Answer 44

its alot different

Answer 45

i mean question

Answer 46

I guess so.

Answer 47

ok

Answer 48

Find the equation of a line parallel to the given line: y = -3/4x -1.


y = -3/4x + 2

y = 3/4x – 1

y = 4/3x – 1

y = 3/4x + 1

Answer 49

this one is really easy to solve...
just look for the equation that has the same slope, but a different y intercept.

Answer 50

there is only one equation in there that has the same slope. :)

Answer 51

ohhh
so its y=-3/4x+2

Answer 52

ding ding ding

Answer 53

ok

Answer 54

btw, slope intercept form is y = mx + b

b = y intercept

Answer 55

ok thanks

Answer 56

ok this is my last question....

Answer 57

Write an equation in slope-intercept form for an equation of a line perpendicular to y = 1/2x that intersects at point (-2, 3).


y = -2x – 1

y = 2x + 7

y = 2x + 3

y = -2x +1