Isaac and Sakura are both doing a science experiment where they are measuring the temperature of a liquid over time. Graphs that represent each of their data are shown below.

A graph titled Isaac's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, 80) and (2, 70).

A graph titled Sakura's Experiment has time (minutes) on the x-axis and Temperature (degrees Fahrenheit) on the y-axis. A line goes through points (0, negative 80) and (8, 0).

Which statement is correct?
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is positive, and the slope of the graph that represents Sakura’s data is negative.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is positive.
The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is negative.

The slope of the graph that represents Isaac’s data is negative, and the slope of the graph that represents Sakura’s data is positive.

Sophia wrote an equation to represent the revenue of a movie theater for one day. She let x represent the number of child tickets sold and y represent the number of adult tickets sold. If a child ticket costs $4, an adult ticket costs $6, and the total revenue for the day was $420, which equation could Sophia use to represent the number of child and adult tickets that were sold?

6 x + 4 y = 420
4 x + 6 y = 420
4 x + 6 y = 840
6 x + 4 y = 840

4x + 6y = 420

Which is the graph of the linear equation 3x – 4y = –12?

On a coordinate plane, a line goes through points (0, 3) and (4, 0).
On a coordinate plane, a line goes through points (negative 4, 0) and (0, negative 3).
On a coordinate plane, a line goes through points (0, negative 3) and (4, 0).
On a coordinate plane, a line goes through points (negative 4, 0) and (0, 3).

On a coordinate plane, a line goes through points (0, 3) and (4, 0).

At a carnival, single rides cost $2 each, and all day ride passes cost $15. The total revenue for the day was $2,960. Which equation can be used to represent x, the number of single ride passes sold and y, the number of all day ride passes sold?

2x + 15y = 2,960
12x + 5y = 2,960
15x + 2y = 2,960
17x + 15y = 2,960

2x + 15y = 2,960

Which graph has a slope of Two-thirds?

On a coordinate plane, a line goes through points (0, negative 1) and (2, 2).
On a coordinate plane, a line goes through points (negative 3, 1) and (0, negative 1).
On a coordinate plane, a line goes through points (0, negative 1) and (3, 1).
On a coordinate plane, a line goes through points (negative 2, 2) and (0, negative 1).

On a coordinate plane, a line goes through points (0, negative 1) and (3, 1).

Which point on the graph represents the y-intercept?

On a coordinate plane, a line goes through points V (negative 4, 4), W (0, 2), Y (2, 1), Z (4, 0).
V
W
Y
Z