Question

Select the equation of a line that is parallel to the line on the graph and passes through the point (2, 3).
(there is a graph)

y = 2x + 4

y = - 2x + 2

y = - 1 over 2 x + 2

y = - 1 over 2 x + 4

Answer 1

@Luigi0210

Answer 2

It'd be easier to plug in the vales and see which statement is true.

Answer 3

okay I'm trying to get the graph up so you can see it one second please

Answer 4

there is the graph

Answer 5

Oh, nevermind my first statement then. What we have to do is find the slope of the graph. Do you know it?

Answer 6

i've looked and I think c or d.

Answer 7

Yup, so the only way I know how to do it is using the point-slope formula: \[\LARGE y-y_{1}=m(x-x_{1})\]
Do know this formula?

Answer 8

yes I have seen that

Answer 9

So m is the slope, and x and y are the points: So just simplify this and you should get the right answer:
\[\LARGE y-3=-\frac{1}{2}(x-2)\]

Answer 10

how do I simplify that? I always forget how to do that.

Answer 11

Just distribute the 1/2 first.

Answer 12

so it'd be something like 3 1/2? Im really sorry Im not to good at stuff like this.

Answer 13

Not exactly, think of it this way:
\[\LARGE y-3=(-\frac{1}{2}*x)-(\frac{1}{2}*(-2))\]

Answer 14

oh okay

Answer 15

i think D is right. do u think so?

Answer 16

Yup, it would be D.

Answer 17

cool thanks again.

Answer 18

Just as a heads up for future reference. You can give medals by hitting the "Best Response" button. Someone are picky about that, just letting you know now so people don't bug you about it later.

Answer 19

okay thanks

Answer 20

Yup!