Answer:
Step-by-step explanation:
First, graph the expression by making sure it goes through 10 on the y-axis and since it shows -4 that means for every 1 unit to the right the y coordinate moves 4 boxes down. (Your graph should look like a downwards slope)
Now, pick 2 points on your graph, ill pick (0, 10) and (1, 6)
Now, put these in point-slope form and you will get your slope
Point-Slope form
m=y2-y1/x2-x1
m= 10-6/0-1
m= 4/-1
m=-4
Also, you can just see that it's the slope by the graph by using rise over run.