Question

Write the equation of the line given by the following graph in standard form.

Answer 1

A. 2x - y = -1
B. 2x + y = -1
C. 2x + y = 1
D. 2x - y = 1

Answer 2

thanks

Answer 3

The line passes through (0,1) and (1,-1).

Slope is change of y/change of x = (-1-1)/(1-0) = -2
So m, the slope, is -2.

We know that y = mx + b or so far y = -2x + b.

The y-intercept is 1 from the graph.

So the equation of the line is y = -2x + 1.

Choice C is correct.