Question

Select the equation that represents the graph below

A) y=2x+1
B) y=-2x - 1
C) y= 1/2x + 1
D) y=-1/2x - 1

Answer 1

The linear equation in the graph is:

y = 2x + 1

So the correct option is A.

Which equation represents the line in the graph?

A general linear equation can be written as:

y = ax + b

Where a is the slope and b is the y-intercept.

Looking at the graph, we can see that the y-intercept is y = 1, then we can write:

y = ax + 1

The line also passes through (1, 3), replacing these values we will get:

3 = a*1 + 1

3 - 1 = a

2 = a

Then the equation is:

y = 2x + 1