2 years ago

If the slope is 3 and one ordered pair on the line is (2,9), what is the equation?

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

7 0

Answer:

y = 3x+3

Step-by-step explanation:

we can find the equation of the line with this formula:

y-y1 = m(x-x1) where y1 and x1 indicate the coordinates of the given point and m the slope

so we have

y-9 = 3(x-2)

y = 3x-6+9

y = 3x + 3

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What value of x will make the triangles similar by the SSS similarity theorem?

Sophie [7]

Answer:

1,5

Step-by-step explanation:

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3 years ago

Hello please help me with this I need an answer immediately thank you so much see image

hodyreva [135]

For this case, we know that:

$PA = PB$

Then, by Pythagorean theorem (right triangle on the right) we have:

$CP ^ 2 = CB ^ 2-PB ^ 2$

So, again using the Pythagorean theorem (right triangle on the left) we have:

$CA ^ 2 = CP ^ 2 + PB ^ 2$

Substituting values:

$CA ^ 2 = (CB ^ 2-PB ^ 2) + PB ^ 2$

Rewriting:

$CA ^ 2 = CB ^ 2$

$CA = CB$

$CA = 15$

Answer:

The value of CA is given by:

$CA = 15$

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2 years ago

To paint a house, a painting company charges a flat rate of $500 for supplies plus $50 for each hour of labor. What is the slope

Nataly_w [17]

The slope of the line is 50. You can try looking at the equation, which is

y=50x+500

500 is your y-intercept, and is where the cost starts.

50 is your slope, since the cost goes up by $50 every time.

x is how many hours, which determines how many $50s there are.

I hope this helps. All in all, the slope is 50.

5 0

2 years ago

HELP WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

erica [24]

3/4 * h = 2 1/4
3/4* h * 4/3 = 9/4 * 4/3
h = 3

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2 years ago

Solve by the substitution method,<br> 3x + 7y = 27<br> - 7x + y = 41

Arturiano [62]

Answer:

all work is pictured and shown

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3 years ago