liner equation

[latresa31s]

Can some one tell me how todo this problem I can only get the first step?

y=2x+7
(a) (0,?)
(b) (4,?)

complete the order pairs

 

[Gene]

You just replace the x with the first of the pair and see what you get for y. The a) becomes
y=2*0+7 = 7
so (0,?) becomes (0,7)

 

[latresa31s]

So How would it be for the second part?

y=2x+7

(4,?)

I did it lik this

y=2x+7
y=2*4+7
y=8+7
y=15
(4,15)

is this correct?

 

[Euler]

Yes!