Question

Indicate in standard form the equation of the line passing through the given point and having the given slope.

E(3, 5), m = undefined
please help meeee :O

Answer 1

what is standard form?

Answer 2

standard form is: ax + by = c

solving for y gets us to slope intercept form: y = -(a/b)x + c/b, where m = -a/b

when a rational number is undefined, it pretty much means that the bottom is zero, let b=0

ax + 0y = c

now use the given point, to define a and c

Answer 3

so plug in the 3 and the 5 for a and c?

Answer 4

no, 3 and 5 are x and y .....

Answer 5

oh v.v im kind of confused still

Answer 6

ax + 0y = c

a(3) + 0(5) = c

3a = c, now we can use this to fix the equation

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ax + 0y = 3a

ax = 3a

x = 3

Answer 7

ohh ok... and this is the equation i use for standard form?

Answer 8

ax + by = c is called standard form, yes

Answer 9

a vertical line can only be defined using this form, since the slope is undefined

Answer 10

ok thank you!!!! :D what if they give you the slope?

Answer 11

then by knowing this ...

standard form is: ax + by = c

solving for y gets us to slope intercept form: y = -(a/b)x + c/b, where m = -a/b

the a and b parts come are defined by the slope that they define

Answer 12

was debating using; come from, and are defined by ... and it came out a hybrid lol

Answer 13

hahahaha thank you so much for your help :)

Answer 14

good luck

Answer 15

thank you :)