Discover Points on Line y=2x+1: A Journey Through Coordinates

Question

y=2x+1 y=2x+1

Through which points does the function above pass?

Video Solution

Solution Steps

00:00 Find which points lie on the line
00:03 In each point, the left number represents the X axis and the right one represents Y
00:08 We'll substitute each point in the line equation and see if possible
00:13 Not possible, therefore the point is not on the line
00:17 Use the same method for all points to find which ones lie on the line
00:33 Not possible, therefore the point is not on the line
00:39 Let's move to this point
00:50 Not possible, therefore the point is not on the line
00:55 Let's move to this point
01:08 Possible, therefore the point is on the line
01:11 And this is the solution to the question

Step-by-Step Solution

To find which point lies on the graph of the function y=2x+1 y = 2x + 1 , we will substitute the x x values from each choice and see if the output y y matches the y y of that point.

Let's evaluate each point:

  • For (0,0) (0,0) : Substitute x=0 x = 0 into y=2x+1 y = 2x + 1 , we get y=2(0)+1=1 y = 2(0) + 1 = 1 . Does not match y=0 y = 0 .
  • For (3,10) (3,10) : Substitute x=3 x = 3 into y=2x+1 y = 2x + 1 , we get y=2(3)+1=7 y = 2(3) + 1 = 7 . Does not match y=10 y = 10 .
  • For (5,12) (5,12) : Substitute x=5 x = 5 into y=2x+1 y = 2x + 1 , we get y=2(5)+1=11 y = 2(5) + 1 = 11 . Does not match y=12 y = 12 .
  • For (4,9) (4,9) : Substitute x=4 x = 4 into y=2x+1 y = 2x + 1 , we get y=2(4)+1=9 y = 2(4) + 1 = 9 . Matches y=9 y = 9 .

Therefore, the point through which the function y=2x+1 y = 2x + 1 passes is (4,9) (4,9) .

Answer

(4,9) (4,9)