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lapo4ka [179]
3 years ago
15

How do you graph a line with one number y= -4

Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0

Answer:

See explanation

Step-by-step explanation:

When you have an equation like that, all you have to do is draw a line at the y-value given. In our case, y = -4 is a horizontal line. Graph paper is made of many intersecting lines. From the x-axis (should be a big black line that moves left to right), move down four lines. Once you get to the fourth line, trace the line from left to right. Put some points at the y-value of -4 (for example (-1, -4)) if it helps you straighten the line.  

Some lines may be vertical and move up and down. Those lines have an x instead of a y (x=3, x= -12, etc.). Fortunately, these lines, both vertical and horizontal, are a lot easier to draw than other equations.

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The graph of which function will have a maximum and a y-intercept of 4?
stiv31 [10]

Answer:

<h2>f(x) = -x² + 2x + 4</h2>

Step-by-step explanation:

We have quadratic functions f(x) = ax² + bx + c.

c - y-intercept

If a > 0, then a parabola opens up and has a minimum in a vertex.

If a < 0, then a parabola opens down and has a maximum in a vertex.

The function has maximum and y-intercept of 4:

a < 0 and c = 4

4 0
3 years ago
An archaeologist is categorizing the artifacts he has discovered. Two-thirds of the artifacts are shards of pottery. One-eighth
Reika [66]

Answer:

Personal items=15

Step-by-step explanation:

We are given:

Total number of artifacts = 72.

We are told that 2/3 of total artifacts are shards of pottery.

\text{Shards of pottery}=72*\frac{2}{3} =24*2=48

We are also told that 1/8 of total artifacts are tools.

\text{Tools}=72*\frac{1}{8}=9

Now we will find out number of personal items by subtracting combined number of shards of pottery and tools from total number of artifacts.

\text{ Personal items}=72-(48+9)

\text{ Personal items}=72-57=15

Therefore, there are 15 personal items.

8 0
4 years ago
Perfect Squaress less than 30​
levacccp [35]

The perfect whole squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

Less than 30 are:

<h2>1, 4, 9, 16, 25</h2>
5 0
3 years ago
What are both of the ranges
MArishka [77]

Answer:

0.8 < x < 16.8

Step-by-step explanation:

The third side of the triangle is always less than the other two sides combined. I think of it like if it was greater than the other two sides added, there would be no triangle- it'd be a line.

The other rule is that it has to be greater than the difference between the two lines.

I hope this helped!

6 0
3 years ago
Of 24 tulips 1/3 are red. how many tulips are red?
Soloha48 [4]
6 tulips are red out of 24
3 0
3 years ago
Read 2 more answers
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