First we have to figure out how much 3 bags cost using the total cost of $8.25
That means. we would do 8.25/3 and 8.25 divide by 3 equals 2.75.
Now we know that each bag costs approximately $2.75
All we have to do now is multiply 2.75 by 4 to get the cost for the total of 4 bags.
4 times 2.75 is exactly 11 dollars, if might change if theres tax.
But, the answer would be 4 bags costs $11.
For the first one:
m is the slope, or how much the line goes up compared to goes right. In this case, the line goes up 40 every time it goes right 10. We write this as a fraction so 40/10, which simplifies to 4. Therefore the equation would be y = 4x.
First find out the function for the given table.
Find the slope.
m= (y2-y1)/(x2-x1)
m=(-1-(-3)) / (-1-(-2))
m=(-1+3) / (-1+2)
m=2/1
m=2
Now equation of line:
y-y1=m(x-x1)
y-(-3)=2(x-(-2))
y+3=2(x+2)
y+3=2x+4
y=2x+1
Now plot these points on the graph, we get the attached graph.
6x=16
÷6 both sides
x=16/6 or 8/3