Question

What is the equation of the line in the graph? 4,0 0,4

Answer 1

find the slope soooo its (y2-y1/x2-x1)= -4/4 so -1 is slope
equation is y=-x+4

Answer 2

You have to find the slope using the slope formula: $\frac{y_2-y_1}{x_2-x_1}$

$( x_{1} ,y_{1} ) = (4, 0)$

$ ( x_{2}, y_{2}) = (0, 4)$

$\frac{y_2-y_1}{x_2-x_1} = \frac{4-0}{0-4} = \frac{4}{-4} = \frac{1}{-1}$ = -1 = m

After finding slope, you have to find the equation using the point slope formula:

$(y - y_1) = m(x - x_1)$

$(y - 0) = -1(x - 4)$

$y = -x + 4$

Hence, the equation is y = -x + 4 .