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2 years ago

Which graph represents a function? Ay ny ty

Mathematics

2 answers:

nirvana33 [79]2 years ago

6 0

Answer: it would be the fourth one with the line going straight across the top

Step-by-step explanation: To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x.

If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

Andrew [12]2 years ago

5 0

Answer: it would be the last

Step-by-step explanation:

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Approximate, in square centimeters, the area of a circle with radius=43 cm. (Round your answer to two decimal places.)

antoniya [11.8K]

Answer:

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21.5

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3 years ago

The points (0, 1) and (-9, -9) fall on a particular line. What is its equation in slope-intercept form?

prohojiy [21]

The slope-intercept form:

$y=mx+b\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

m - slope

b - y-intercept → (0, b)

We have the points (-9, -9) and (0, 1) - y-intercept → b = 1.

Calculate the slope:

$m=\dfrac{1-(-9)}{0-(-9)}=\dfrac{10}{9}$

Answer: $y=\dfrac{10}{9}x+1$

4 0

3 years ago

Can somebody please help me i need this urgently.

sukhopar [10]

Answer:

multiple choice is worth 2

short response is worth 4

Step-by-step explanation:

23x + 10y = 86

28x + 5y = 76

solve by elimination

multiply the top by -1 and the bottom by 2

-23x + -10y = -86

56x + 10y = 152

add them

33x = 66

x = 2

with x = 2 plug x into one of the equations

23x + 10y = 86

23(2) + 10y = 86

46 + 10y = 86

10y = 40

y = 4

x = 2 and y = 4 so

multiple choice is worth 2

short response is worth 4

6 0

2 years ago

What would the slope intercept form be?

Kaylis [27]

Answer:

y=-2x

Step-by-step explanation:

6 0

3 years ago

Which name correctly classifies this triangle? A. right B. obtuse C. acute

sergejj [24]

Hello there!

The would be a (right angle) because this angle is not greater than, or less than 90°.

Your correct answer would be the first option. (right angle).

7 0

3 years ago