Question

Use the image to answer the question.

An illustration of a coordinate plane with four quadrants shows the x-axis ranging from negative 9 to 9 and the y-axis ranging from negative 11 to 11 in increments of 1. A solid upward line with arrows at both ends is plotted on the graph. The line passes through the plotted points left parenthesis 0 comma negative 4 right parenthesis and left parenthesis 1 comma negative 1 right parenthesis.

Using the graph, derive the equation of the line in slope-intercept form.

(1 point)

y=3x−4


y=3x+4


3x−y=4


y=−3x−4

Answer 1

Find slope: m = (−1 − (−4)) / (1 − 0) = 3.
y-intercept is −4 (point (0,−4)).
So the equation is y = 3x − 4.