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svlad2 [7]
3 years ago
14

Point slope equations

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

The point slope equation is: y - y1 = m (x - x1)

m = slope

Step-by-step explanation:

To use this equation, you need to know:

-<u> </u><u>one point on the line</u>

-<u> the slope of the line</u>

<u>First</u>:

(x1,y1) = a known point on the line

m = the slope

(x,y) = any other point on the line

<u>Now</u>:

we plug the numbers into the equation to get y - y1 = m (x - x1)

<u>Then</u>:

you solve the equation

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Sergeeva-Olga [200]

Part A

Represents 'Reflection'. This is so because the y-coordinates of P, Q and R remain the same in P' , Q' and R', and only the x-coordinate changes. Hence, it is reflection along the y-axis

Part B

Represents 'Rotation'. Here, the x-coordinates and y-coordinates of each of the points have changed, and the figure has been rotated clockwise around the point Q by 90°

Part C

Represents a combination of 'Translation' and 'Reflection'. Here either of the two has happened:

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Part D

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8 0
3 years ago
Numbers 38 and 40 pls and thanks
Evgen [1.6K]

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8 0
3 years ago
Read 2 more answers
7 What is the value of the expression -3x^2 y +4x when x = -4 and y = 2
love history [14]
<span> -3x^2 y +4x 
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Answer:

see explanation

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ) , then

(3, 3 ) → (- 3, 3 )

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N^2+100=20n<br><br> Please show work
adell [148]
Subtract 20n from both sides of the equation.
n^2+100-20n=0
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set the n-10 equal to 0.
n-10=0
add 10 to both sides of the equation.
n=0
7 0
3 years ago
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