Ralph graphs line e through points (3,6) and (12, 10) and line f through points (4, 1) and (13,5). What can be concluded about the lines he graphs? A The lines intersect at the point (7.5, 8).
B. The lines have the same slope and are coinciding.
C. The lines are parallel and do not intersect.
D. The lines intersect at the point (8,5).​

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

i believe the correct answer is b.

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.