3 years ago

Find an equation, in slope-intercept form, that passes through the point (−4,3) with a slope of −3.

Mathematics

1 answer:

lisov135 [29]3 years ago

8 0

Answer:

y = -3x - 9

Step-by-step explanation:

Equation of line in point slope form is given as:

$y - y_1 = m(x-x_1) \\y - 3= - 3\{x - (-4)\}\\y - 3 = - 3(x + 4)\\y =- 3x - 12 +3\\y = - 3x - 9\\ is \: the \: required \: equation \\$

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natulia [17]

It would be y=4x-3 because -11 show that it went down 11 units. So if it is going to go up 8 units, -11+8 is -3.

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Step-by-step explanation:

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3 years ago

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3 years ago

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I don’t know how to do it please help

madreJ [45]

Answer:

37.5

Step-by-step explanation:

First you have to realize that these are similar triangles.

You can do a easy cross multiplication with these types of questions by forming an equation with the similar angles.

put the smaller above the decimal and the bigger one below like this.

$\frac{8}{25}$ = $\frac{12}{x}$

Now cross multiply

8x=300

x=37.5

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