Question

Is the point (2, 2 1/2) on the graph of y=x+2? How do you know?

Answer 1

please help me :(

Answer 2

plg you point into the equation, plug in 2 for x, and 2 1/2 for y.

Answer 3

\(\large\color{black}{ y=x+2 }\)
if I had a point (-1,1) I would do this,
\(\large\color{black}{ (1)=(-1)+2 }\)
\(\large\color{black}{ 1=-1+2 }\)
\(\large\color{black}{1=1 }\)

So you know that the point (-1,1) is on the line.

Answer 4

you need to do the same exact thing, but with \(\large\color{black}{ (2~,~2\frac{1}{2}) }\)

Answer 5

oh ok

Answer 6

I would prefer you to do it in here, in this post, so that I can see what you do, but you don't have to...

Answer 7

ok give me a second

Answer 8

sure

Answer 9

so 2 1/2=2+2

Answer 10

so far so good..

Answer 11

the point 2, 2 1/2 is NOT
on the graph of y=x+2

Answer 12

Yes, because when you plug it into the equation of the line, the sides are not equal. Correct!

Answer 13

thank you so much for the help

Answer 14

you really quickly got a hang of it... you welcome !