2 years ago

I NEED HELP WITH MATHH

Mathematics

1 answer:

Nesterboy [21]2 years ago

6 0

Hey I can help give me one moment .

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Line MN passes through points M4, 3) and M7, 12). If the equation of the line is written in slope-intercept form, y-mx+ b, what

Butoxors [25]

Answer:

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 M(4, 3) and N(7, 12). Substitute:

$m=\dfrac{12-3}{7-4}=\dfrac{9}{3}=3$

Therefore we have the equation:

$y=3x+b$

Put the coordinates of the point M to the equation:

$3=3(4)+b$

$3=12+b$ subtract 12 from both sides

$-9=b$

4 0

2 years ago

Math math math pls help

bearhunter [10]

Look at the attached picture ⤴

Hope this will help u...

8 0

2 years ago

Read 2 more answers

Determine the intercepts of the line. y-intercept: r-intercept: help pls

cricket20 [7]

The picture is blurry

7 0

2 years ago

Verify the identity cos quantity x plus pi divided by two = -sin x

In-s [12.5K]

Answer:

Identity is verified.

Step-by-step explanation:

We have to verify the identity $cos(x+\frac{\pi }{2}) = (- sinx)$

To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.

In this identity we take the left hand side first

$cos(x+\frac{\pi}{2})$

$=cosx\times cos(\pi/2)-sinx\times sin(\pi/2))$ (as we know cos(a+b) = cosa×cosb-sina×sinb)

$= cosx\times0-sinx\times1$

$= 0-sinx$

= - sinx ( Right hand side)

Hence identity is proved.

6 0

3 years ago

Plz help me. im not as smart as I seem. 7th grade math. extra points!

Strike441 [17]

Okay what’s the question?

7 0

2 years ago