In the xy-plane, the graph of  intersects the graph of y =x at the points (0,0) and (a, a). What is the value of a?

Snow fell and then stopped for a time. When the snow began to fall again, it fell at a faster rate than it had initially. Assuming that none of the snow melted during the time indicated, which of the following graphs could model the total accumulation of snow versus time?

The line with the equation  is graphed in the xy-plane. What is the x-coordinate of the x-intercept of the line?

The table above shows some values of the functions w and t . For which value of x is  ?

Solve each inequality and graph the solution :

Note:
When we have an inequality with the symbols < or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.

The graph above shows the positions of Paul and Mark during a race. Paul and Mark each ran at a constant rate, and Mark was given a head start to shorten the distance he needed to run. Paul finished the race in 6 seconds, and Mark finished the race in 10 seconds. According to the graph, Mark was given a head start of how many yards?

Solve each inequality and graph the solution :
-2.1x+2.1<6.3

Note:
When we have an inequality with the symbols < or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.

Solve each inequality and graph the solution :
2.1x≥6.3

Note:
Whenever we use the symbol ≤ or ≥ , we use the endpoint as well. So, we use complete line to graph the solution.

Which expression is equivalent to

Andrew and Maria each collected six rocks, and the masses of the rocks are shown in the table above. The mean of the masses of the rocks Maria collected is 0.1 kilogram greater than the mean of the masses of the rocks Andrew collected. What is the value of x ?

Solve each inequality and graph the solution :
x-8.4≤2.3

Whenever we use the symbol ≤ or ≥ , we use the endpoint as well. So, we use complete line to graph the solution.

Jeremy deposited x dollars in his investment account on January 1, 2001. The amount of money in the account doubled each year until Jeremy had 480 dollars in his investment account on January 1,2005 . What is the value of x ?

Solve each inequality and graph the solution :
0.25x>0.5

Note:
When we have an inequality with the symbols < or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.inequality.

A bricklayer uses the formula to estimate the number of bricks, n , needed to build a wall that is l feet long and h feet high. Which of the following correctly expresses l in terms of n and h ?

Solve each inequality and graph the solution :
-3x>15

Note:
When we have an inequality with the symbols< or > , we use dotted lines to graph them. This is because we do not include the end point of the inequality.