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Anastasy [175]
3 years ago
9

Which is the graph of x – y = 1? Image for option 1 Image for option 2 Image for option 3 Image for option 4

Mathematics
2 answers:
mars1129 [50]3 years ago
7 0
That One ..bla bla must be 20 characters long..

dalvyx [7]3 years ago
3 0

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

x-y=1

This is a linear equation

Isolate the variable y

y=x-1

we know that

The slope of the line is positive m=1

The x-intercept is the point (1,0) ----> value of x when the value of y is equal to zero

The y-intercept is the point (0,-1) ----> value of y when the value of x is equal to zero

Plot the intercepts to graph the line

see the attached figure

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Write a quadratic function in vertex form whose graph has the vertex
ELEN [110]

Answer:

y = \frac{1}{2}(x - 5)² - 2

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (5, - 2), thus

y = a(x - 5)² - 2

To find a substitute (7, 0) into the equation

0 = a(7 - 5)² - 2

0 = 4a - 2 ( add 2 to both sides )

2 = 4a ( divide both sides by 4 )

a = \frac{2}{4} = \frac{1}{2}

y = \frac{1}{2} (x - 5)² - 2 ← in vertex form

4 0
3 years ago
If Jimin is 5'9" and Namjoon is 5'11" what is the difference in height? (You don't have to answer this)
xz_007 [3.2K]
3" is the difference in height.
8 0
3 years ago
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Two hundred students are going to dine with the principal as their reward for perfect attendance. A random survey of 25 of these
Karolina [17]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
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The wildflowers at a national park have been decreasing in numbers. There were 1200 wildflowers in the first year that the park
bonufazy [111]

Year      New flowers

1                 1200

2                 300

3                   75

There were 1200 wildflowers in the first year that the park started tracking them. Since then, there have been one fourth as many new flowers each year

Initially there are 1200 flowers and start decreasing by \frac{1}{4}

So first term is 1200 and common ratio is \frac{1}{4}.

Its a geometric sequence so summation becomes

i =1∑ ∞ 1200(\frac{1}{4})^{i-1}

Now we find the sum

We use sum formula

Sum = \frac{a}{1-r}

Where a is the first term , a= 1200

r is the common ratio , r= 1/4

Sum = \frac{1200}{1-(\frac{1}{4})}

Sum = \frac{1200}{\frac{3}{4}}

Sum = 1600 wildflowers

4 0
3 years ago
What is the range of the function ok the graph
olga2289 [7]
All real numbers greater than or equal to 1
6 0
3 years ago
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