First, let's calculate the slope of the line using the two given points:
Slope = (y2 - y1) / (x2 - x1)
Slope = (-4 - (-1)) / (0 - 1)
Slope = (-4 + 1) / -1
Slope = -3 / -1
Slope = 3
Now that we have the slope, we can plug it in along with one of the points into the point-slope form of a linear equation:
y - y1 = m(x - x1)
y - (-1) = 3(x - 1)
y + 1 = 3(x - 1)
y + 1 = 3x - 3
y = 3x - 3 - 1
y = 3x - 4
Therefore, the equation of the line in slope-intercept form is y = 3x - 4.
Use the graph to answer the question.
(1, -1)
(0, -4)
Using the graph, derive the equation of the line in slope-intercept form.
1 answer