Answer:
D
Step-by-step explanation:
A function is where each input (here, the input is x) corresponds to exactly one output (here, the output is y). In other words, if a function is graphed, we should be able to draw a vertical line through every single part of it that will intersect it at only one place.
Let's examine each choice.
(A) Well, if we draw a vertical line through the graph, it will obviously intersect the entire line - which is an infinite number of intersections, so this is not a function.
(B) If we draw a vertical line through the portion of the graph that lies near the positive x-axis, we note that it will intersect twice, so this is not a function.
(C) If we strategically draw a vertical line through the y-axis, we see it will intersect two times, so this is not a function.
(D) We can draw a vertical line through any portion of this graph and know that it will only intersect once.
Therefore, the answer is D.
Answer:
x=5
Step-by-step explanation:
3.5=0.75x-0.25
add 0.25 to 3.5
3.75=0.75x
divide 3.75 by 0.75
x=5
Answer:
Step-by-step explanation:
5x-8w=9 add 8w : 5x-8w+8w = 9+8w
5x = 9+8w
now divid by 5 : x = (9+8w)/5
11.3> b/4.3 (multiply both sides by 4.3)
4.3(11.3)> 4.3b/4.3 (simplify)
b<48.59
