Jack and kane buy an equal number of comic books every month. the following equation shows the number of comic books, y, that jack has after x months:

y = 2x + 15

the following graph shows the number of comic books, y, that kane has after x months:

after 2 months, how many more comic books does jack have than kane?

1
2
4
7

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)