Question

Which point is a solution of the equation?


y = –3x + 5

A. (2, 1)
B. (–1, –8)
C. (3, –4)
D. (–2, 0)

Answer 1

if you are given a list of points just plug them in and see if they work

Answer 2

Just pick a random number , say 20 for x. Substitute this in the equation to get y.
THe point (x, y) is a solution.

Answer 3

You can also pick 19388583750 for x.

Answer 4

You realize then, that there are infinitely many points that are solution of the equation.
If you draw these points, you'll get a straight line...

Answer 5

@abb0t: thats just as random as 20 ;)

Answer 6

:P

Answer 7

plug in and solve if it's equal it is a point..

Answer 8

@ZeHanz ok i have C is that correct?

Answer 9

OK, C is the point (3, -4).

Set x=3: then y=-3*3+5=-9+5=-4