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3 years ago

Write a function in the form y = mx+b for points ( -6.4 , -2.6 ) and ( 5.2 , 9 )

Mathematics

1 answer:

DENIUS [597]3 years ago

4 0

Answer:

<h3>Not sure if this is right but I'm guessing, you have to do is change in y divided by change in x.</h3>

To find the equation of the line you do:

1. -2.6-9= -11.6(the y)

2.-6.4-5.2= -11.6(the x)

3. -11.6--11.6=0

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Evgen [1.6K]

Answer:

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3 years ago

Read 2 more answers

Slope-intercept form of the equation for the line?

vaieri [72.5K]

Answer:

$\large\boxed{y=-\dfrac{3}{10}x+\dfrac{1}{2}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points from the graph (-5, 2) and (5, -1).

Substitute:

$m=\dfrac{-1-2}{5-(-5)}=\dfrac{-3}{10}=-\dfrac{3}{10}$

We have the equation in form:

$y=-\dfrac{3}{10}x+b$

Put the coordinates of the point (5, -1) to the equation:

$-1=-\dfrac{3}{10}(5)+b$

$-1=-\dfrac{3}{2}+b$

$-\dfrac{2}{2}=-\dfrac{3}{2}+b$ <em>add 3/2 to both sides</em>

$\dfrac{1}{2}=b\to b=\dfrac{1}{2}$

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3 years ago

Determine (a) the slope of the line parallel to the line whose slope is m=2 and (b) the slope of the line perpendicular to the l

kotykmax [81]

Answer:

(b) $\displaystyle -\frac{1}{2} = m$

(a) $\displaystyle 2 = m$

Step-by-step explanation:

Perpendicular Lines have OPPOSITE MULTIPLICATIVE INVERSE <em>RATE OF CHANGES</em> [<em>SLOPES</em>], whereas Parallel Lines have SIMILAR <em>RATE OF CHANGES</em> [SLOPES].

I am joyous to assist you anytime.

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3 years ago

Factor completely.

Svetllana [295]

To help explain how you get A for the answer:
work backwards
5(3a²+11a-4)
multiply everything by 5
5×3a²=15a²
5×11a=55a
5×-4=-20
15a²+55a-20

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3 years ago

If A⊂B, then A∩B=Ø. true false

yuradex [85]

Answer:

JAIJCSDI jISFISvIJJISWFVD JSI SFJSID

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3 years ago