What is the equation of a line that passes through (4, 3) and has a slope of 2?

Question

legomyego180 · Answer

SLOPE INTERCEPT FORM

Y=MX+B

itsbribro · Answer

A. y=2x-11

B. y=2x-5

C. y=2x-1

D. y=2x-7

itsbribro · Answer

so can you fit the numbers in for me I got confused

legomyego180 · Answer

you can always just try plugging the numbers in too

legomyego180 · Answer

x=4
y=3

plug in x=4 for each answer and the answer that gives you e as your y value is the correct one!

itsbribro · Answer

3=2(4)+b?

itsbribro · Answer

omg... i'm confused

legomyego180 · Answer

3 not e. e is a number too but you'll learn about that later.

itsbribro · Answer

y=2x+3?

itsbribro · Answer

@princeharryyy please help..

mrnood · Answer

@itsbribro 
just take a moment and slow down a bit

legomyego180 · Answer

$$(4, 3)$$

x=4, y=3



A. $2(4)-11=-3$
B. $2(4)-5=3$
C. $2(4)-1=7$
D. $2(4)-7=1$

owlcoffee · Answer

$$(y-y_o)=m(x-x_o)$$
Just take the point, plug the data in and put it into the y=mx+c form:
$$(y-3)=2(x-2)$$

mrnood · Answer

The equation you want LOOKS like

y = mx + b

where m is the slope

so can you write that equation (leaving x and y) with YOUR value of m?

itsbribro · Answer

thanks guys..

legomyego180 · Answer

>.<
We can teach you but we cant learn for you

princeharryyy · Answer

Mr nood way is easy

princeharryyy · Answer

Maybe someday @legomyego180 we might.

itsbribro · Answer

i know i was just asking you how i would plug the numbers in. i was getting confused the way you were explaining @legomyego180

itsbribro · Answer

thank you all for your help explaining this to my stupid brain.. xoxo

legomyego180 · Answer

Mr. Noods way is the correct way.
My way was kind of the easy way out, if you will.

you have (x,y) where and and y are numbers

lets say you are given (1,4) with a slope of 2

*Your slope is always going to be the number in front of your x (i.e. 7x, 10x, 1x)

A. y=2x+1
B. y=2x-4
C. y=2x+2
D. y=2x+8

From your coordinates (1,4) you see that x=1. So in each of your answers plug in 1 for the x value and see what you get out. Ill do it below

A. y=2(1)+1
=3

B. y=2(1)-4
= -2

C. y=2(1)+2
=4

D. y=2(1)+8
=10

Now looking back at your coordinated (1,4) you see that your y-value has to equal 4

The only answer that equaled 4 after you plugged in 1 for x was C

So for this example question C would be your answer.

Its not something necessary to know, just a good way to check your work, although it doesnt work 100% of the time, which is why my noods way is better