What is the equation of the horizontal line through (1,9)

Mathematics

2 answers:

slega [8]4 years ago

7 0

Answer:

y = 9

Step-by-step explanation:

To find the equation of a horizontal line through a point, equate the y-coordinate of the point to y.

The y-coordinate is 9. Equate it to y.

y = 9

-------------|-A---------

| x

See the Cartesian plane that you graph in. The x-axis and y-axis meet at point (0, 0). Points, or ordered pairs, are written (x, y), which is how far you move left/right on the x-axis, then from there, how far up/down you go.

Horizontal lines go from left to right and are parallel to the x-axis.

The equation of the x-axis is y=0 because it meets the y-axis at 0.

(Pretend) the letter A marks the point (1,9). It moved right one unit, then up 9 units. The horizontal line would hit the y-axis at 9 (and not 0 like the x-axis). Therefore the equation for the horizontal line through (1, 9) is y = 9.

stealth61 [152]4 years ago

3 0

Answer:

slope=9

Step-by-step explanation:

the slope is 9, because you do the y/x or rise over run, so you do for every 9 up 1 right to get a slope of 9/1 or 9

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Every day 10% of the liquid present in the morning in Kyle's open container will evaporate. At the end of three days, what perce

lozanna [386]

At the end of three days, $72.9$ % of the original amount of liquid remains in Kyle's container .

Step-by-step explanation:

Here we have , Every day 10% of the liquid present in the morning in Kyle's open container will evaporate. At the end of three days, We need to find what percent of the original amount of liquid remains in Kyle's container . Let's find out:

Let's suppose initially we have 100% of liquid present so ,

At day 1:

10% of the liquid present(100%) in the morning in Kyle's open container will evaporate , So left is :

⇒ $100- \frac{100(10)}{100}$