Question

Graph the line y = -2x - 1 using the given table of values and following the instructions

below.

Plot at least two points from the table of values on the axes below. Click a point to
delete it.

Answer 1

A graph of the equation y = -2x - 1 is shown on the coordinate grid in the picture below.

In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;

y = mx + b

Where:

• m represent the slope or rate of change.
• x and y are the points.
• b represent the y-intercept or initial value.

Since the line has a slope of -2 and a y-intercept at -1, a linear equation that models it is given by;

y = -2x - 1

Based on the linear function y = -2x - 1 is in slope-intercept form, we would start by plotting its y-intercept on a graph;

y = -2x - 1

y = -2(0) - 1

y = -1.

Lastly, we would use an online graphing calculator to plot the given linear function for the values in its domain as shown in the graph attached below.