This is an equation in slope-intercept form, which means it has the form of y = mx + b, where m is the slope and b is the y-intercept.
In this case, the slope is -4 and the y-intercept is -9.
The slope tells us how much y changes for every unit increase in x. In other words, for every one unit increase in x, y decreases by 4 units.
The y-intercept tells us where the line crosses the y-axis. In this case, the line crosses the y-axis at -9, meaning that when x is 0, y is -9.
So, if we were to plot this line on a graph, we would start at the point (0, -9) and then move down 4 units for every one unit we move to the right (or up 4 units for every one unit we move to the left).
y= -4x - 9
Break it down, please!
1 answer
1 answer