A=1/3h(b1-b2). So h=3/(b1-b2)
Remember, you can do anything to an equationas long as you do it to both sides
1.
-6+x=-3
add 6 to both sides
6-6+x=6-3
0+x=3
x=3
2.
add like terms
-5a+5a+9=8
0a+9=8
0+9=8
9=8
false
no solution
zero solutions
Answer:

Step-by-step explanation:
Find the diagram to the question attached.
The standard equation of a line in point-slope form is expressed as:
where:
m is the slope of the line
is coordinate point on the line
First is to get the slope of the line.

If after buying 2 lattes, she has $2 left, hence one of the coordinate of the line is (2, 2). We can get the other coordinates from the graph. From the graph, it can be seen that when x = 0, y = 8. Hence the other coordinates is (0, 8)

Hence the slope is -3
Substitute m = -3 and the point (2, 2) into the formula to get the required equation (note that any of the points can be used)

Hence the equation of the line in point-slope form is 
Answer:
a
Step-by-step explanation:
i think