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3 years ago

5

Write an equation of the line with the slope of -7 going through the point (6,-7)

2 answers:

dezoksy [38]3 years ago

7 0

Answer:

I don't know the answer, but i know how to solve it. you have to do y/x to find the slope. One equation could be y=mx=b. Or y=mx. Or ax+by=c. then plot your points and replace m and b with the right coordinates.

Step-by-step explanation:

zubka84 [21]3 years ago

3 0

Answer:

y= -7x+35

Step-by-step explanation:

so if we write the equation in y- intercept form its <u><em>y=mx+b</em></u> with m slope and b the intercept. so if we plug in the things we know, it becomes -7=-42+b. we solve this to get that b is 35 to make this equation work. now we know the equation, which is y= -7x+35

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Write (2 4) and (6 16) in the form y=mx+b

Lena [83]

Answer:

y = 3x-2

Step-by-step explanation:

We can find the slope using the formula

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

= (16-4)/(6-2)

=12/4

=3

We then use the point slope form of a line

y-y1= m(x-x1)

y-4 = 3(x-2)

Distribute the 3

y-4= 3x-6

Add 4 to each side

y-4+4 = 3x-6+4

y = 3x-2

This is in slope intercept form

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Highschool level trigonometry!!! Need help knowing step by step how to find answer!

Goshia [24]

Answer:

$\theta \approx 82.34^\circ$

Step-by-step explanation:

Please refer to the attached diagram. (Apologies if the shading or resolution is a bit off.)

So, we want to find θ.

Since we formed a right triangle, we can use right triangle ratios.

We know the measure of the adjacent side to θ and the hypotenuse.

Therefore, we will use the cosine ratio:

$\displaystyle \cos(\theta)=\frac{\text{adjacent}}{\text{hypotenuse}}$

The adjacent side is 2 and the hypotenuse is 15. By substitution:

$\displaystyle \cos(\theta)=\frac{2}{15}$

Now, we will take the inverse cosine of both sides. So:

$\displaystyle \theta=\cos^{-1}\Big(\frac{2}{15}\Big)$

Use a calculator. Hence:

$\theta \approx 82.34^\circ$

The angle between the ground and the ladder is about 82.34°.

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3 years ago