Which sets of ordered pairs represent relations that are functions? you may choose more than one correct answer. {(1, 0), (2, 0), (3, 0), (4, 0)} {(2, 3), (2, 4), (2, 5), (2, 6)} {(1, 1), (2, 2), (3, 3), (4, 4)} {(1, 3), (-1, 4), (1, 4), (-1, 3)} {(6, -6), (-6, 6), (5, -5), (-5, 5)}

b

step-by-step explanation:

the word superfluous means unnecessary

$54.99

step-by-step explanation:

$54.99 includes 500 min. if she does not exceed 500 min then her bill is $54.99

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.