BRAINLIEST if right! Which of the flowing graphs is increasing only when x<0?

Mathematics

2 answers:

lapo4ka [179]3 years ago

7 0

Let's analyze each graph.

Graph W is actually decreasing when x<0, so it is incorrect.

Graph X increases when x<0 and not when x≥0, so that makes it a possible answer.

Graph Y decreases when x<0, so it is incorrect.

Graph Z increases when x<0, but it is also increasing when x≥0, so Graph Z is incorrect.

Graph X is the only correct answer.

Have an awesome day! :)

prohojiy [21]3 years ago

6 0

I believe it would be Z

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If 2/3 of the distance from the y-axis to point A (−30, −45) is equal to 1/4 of the distance from the x-axis to point B(a, a), w

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The value of a is 80

Step-by-step explanation:

The distance of a point $(x_0,y_0)$ from the y-axis can be written as

$d_y = |x_0|$

because the x-coordinate of the y-axis is zero.

Similarly, the distance of a point $(x_0,y_0)$ from the x-axis can be written as

$d_x=|y_0|$

Since the y-coordinate of the x-axis is zero.

In this problem:

- The distance of the point A (−30, −45) from the y-axis can be written as

$d_A = |-30|=30$

- The distance of point B (a,a) from the x-axis can be written as

$d_B = |a| = a$

Since $a>0$ .

We are told that 2/3 of the distance from the y-axis to point A (−30, −45) is equal to 1/4 of the distance from the x-axis to point B(a, a), which means

$\frac{2}{3}d_A = \frac{1}{4}d_B$