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3 years ago

A line’s equation is given in point-slope form:

Mathematics

1 answer:

Veronika [31]3 years ago

8 0

Answer:

Slope: -3, apparent point: (-1, -2)

Step-by-step explanation:

Point-slope form means the equation of a line is given in the form of y - y1 = m(x - x1), where x1 and y1 are coordinates of a point that lies on the line and m is its slope. Keeping this in mind while looking at the given equation, you can see that -3 is where m goes, meaning the slope is -3. You can also see that 1 and 2 are in the places where - x1 and - y1 go (don't forget those minus signs!) so you take those two and make them an ordered pair for your apparent point of (-1, -2).

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algol [13]

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3 years ago

Rob and Alan went to taco express. Rob bought seven tacos and to fajitas and paid $12.65. Adam bought 4 tacos and one fajita and

Nataliya [291]

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3 years ago

Help math word problem

erastova [34]

Lets x = # pounds of coffe

70 - 8.06x = 37.76

- 8.06x = - 32.24

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Answer

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4 0

3 years ago

Solve 4(2x-3)=6x+2<br> I don't understand the steps pls

Marysya12 [62]

Answer: x = 7

Step-by-step explanation:

4(2x-3) = 6x+2 <--distribute the 4

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6 0

3 years ago

The equation y 16t 2 18t 405 describes the height in feet of a ball thrown downward at 18 feet per second from a height of 405 f

kumpel [21]

Answer:

Ball hits the ground after 4.5 sec

Step-by-step explanation:

Let a -1, so that the leading coefficient is positive

So our quadratic is

$-1 \times (16t^2 +18t -405)$

The key coefficients of two binomial variables can be 1 and 16, or 2 and 8, or 4 and 4, for the leading coefficient of 16.

Yet they can't actually be 4 and 4 because the linear (x) term coefficient has to be a multiple of 4, which it isn't and leading coefficients 1 and 16 on the binomial factors is not likely.

So, 2 and 8 taken as the leading coefficients of two binomial factors.

For constant 405, possible factorizations are $(81\times 5, 27 \times 15, 9 \times 45).$

$(16t^2 +18t -405) = (8t + 45) (2t - 9)$

Taking first factor, thus we find negative value for given time t. But second time equivalent to zero gives the value of 4.5 for t

Thus ball hits the ground after 4.5 sec

3 0

3 years ago