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3 years ago

The points (4, 9) and (0, 0) fall on a particular line. What is its equation in slope-intercept form?

Mathematics

1 answer:

Nikolay [14]3 years ago

5 0

Answer:

The equation of the line would be y = 4/9x

Step-by-step explanation:

In order to find the equation, we first need to find the slope. We can do this by using the slope equation with the points.

m(slope) = (y2 - y1)/(x2 - x1)

m = (9 - 0)/(4 - 0)

m = 9/4

Now that we have this, we can use point-slope form along with one of the points to get the equation.

y - y1 = m(x -x1)

y - 0 = 4/9(x - 0)

y = 4/9x

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Percent of decrease of 120 to 52

levacccp [35]

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change=120 to 52
120-52=68
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3 years ago

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Daniel [21]

Answer:

here (edit I made a mistake)

Step-by-step explanation:

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CaHeK987 [17]

Answer:

Step-by-step explanation:

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3 years ago

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Write the equation of the line that is perpendicular to y=2x-7 and passes through the point (6, 5)

Pani-rosa [81]

Answer:

Step-by-step explanation:

we are given a equation of a line

we want to figure out the equation of the perpendicular line passes through the (6,5) points

in order to do so

recall that,

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{m}$

we got from our given equation that m=2

because equation of a line is y=mx+b

thus

$\displaystyle m_{ \text{perpendicular}} = - \frac{1}{2}$

remember that, when we want to figure out perpendicular line or parallel line we should the formula given by

$\displaystyle y - y_{1} = m(x - x_{1})$

since we got our perpendicular m is -½, $x_1=6$ and $y_1=5$ , substitute

$\displaystyle y - 5 = - \frac{1}{2} (x - 6)$

to get the perpendicular equation you should simplify the above equation to y=mx+b form

distribute -½:

$\displaystyle y - 5 = - \frac{1}{2} x + 3$

add 5 to both sides:

$\displaystyle y = - \frac{1}{2} x + 8$

hence,

our answer choice is B

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3 years ago

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Use the slope interactive to graph the line with a y-intercept of -2 and slope of -1/3. What is the x-intercept of the line

brilliants [131]

The x intercept would be -3 I believe, please mark me as brainliest if this helps and comment if you would like an explanation

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