Question

Look at the graph shown:

A coordinate plane is shown. A line passes through the y-axis at -1 and through the point 1 comma 2.
Which equation best represents the line? (4 points)

y = 1 over 3.x − 1
y = 3x − 1
y = 3x + 1

Answer 1

y = 3x - 1

Explanation:

Answer 2

y = 3x - 1

Explanation:

1)

passes y-axis means x will be 0,

when x = 0,

y = 3x − 1

y = 3(0)-1

y = -1 ................so matches with option 1.

2)

Here given in second option passes through ( 1 , 2 )

if x = 1

y = 3x − 1

y = 3(1) − 1

y = 2 ..........................so matches with option 2.

Therefore equation: y = 3x - 1 represents the current following.