Answer:
i think is probably 70 sec or 75
Step-by-step explanation: idk
A function is an equation or graph where each x value only has one y value. In the first image you can use the vertical line test. Take your pencil and lay it on the paper vertically. Move it across the graph. Basically if an x value has multiple y value it is not a function. The first image is not a function because all x values past zero have multiple y values for each x value. In the second image it is not A because in A the x value of 2 has a y value of 1 and 8. It is not B because the 5 has a y value of 3 and 7. It’s is not D because of the 5 again. It is C because all x values are unique.
Hope that helps
3x + 2y = 12
2y = -3x + 12
y = -1.5x + 6
2x - 2y = -4
-3x -3y = 0
_____________________
-1x - 5y = -4
