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DENIUS [597]
3 years ago
11

Find the slope of a line perpendicular to a line through the given points.. . E(5, 7), F(3 , 1)

Mathematics
2 answers:
jeyben [28]3 years ago
6 0
Slope of perpendicular lines multiply to -1

find slope of this line

slope=(y2-y1)/(x2-x1)
(x,y)
(5,7)
(3,1)
slope=(1-7)/(3-5)=-6/-2=6/2=3

perpendular lines have slopes taht mutliply to -1
3 times what=-1
-1/3

slope of perpendiular is -1/3
Firdavs [7]3 years ago
6 0

Answer:

slope of perpendiular is -1/3

Step-by-step explanation:

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The point below will be reflected over the line y = x and then translated two units left and one unit up.5421-5-4-3-2-10234-1-2-
charle [14.2K]

A reflection over the line y=x implies exchanging the x and y coordinates of a point. For example if you take a generic point (a,b) then its reflection over y=x is (b,a). Our point is (-1,3) so its reflection over y=x is the point (3,-1).

Then we have to translate it two units left. Translating a point left means that we are moving towards negative x values so we need to substract 2 from the x coordinate:

(3,-1)\rightarrow(3-2,-1)=(1,-1)

Finally we have to translate it 1 unit up towards positive y values so we have to add 1 to its y coordinate:

(1,-1)\rightarrow(1,-1+1)=(1,0)

And these are the final coordinates. In the following picture you have the points you get after each step (from A to D) with the y=x line in blue:

4 0
1 year ago
The water level in a lake was monitored and was noted to have changed -2 1/3 inches in one year. The next year it was noted to h
Diano4ka-milaya [45]

Answer:

The total change in water level over the past 2 years is \displaystyle -4 \frac{1}{6}.

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Fractions

  • Proper and Improper

Numbers

  • Least Common Multiple (LCM)

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Year 1 water change:  \displaystyle -2 \frac{1}{3}

Year 2 water change:  \displaystyle -1 \frac{5}{6}

<u>Step 2: Find Total Water Change</u>

  1. [Set up] Add yearly water changes:                                                                \displaystyle -2 \frac{1}{3} + -1 \frac{5}{6}
  2. [Fractions] Convert to improper:                                                                     \displaystyle \frac{-7}{3} - \frac{11}{6}
  3. [Fraction] Rewrite [LCM]:                                                                                  \displaystyle \frac{-14}{6} - \frac{11}{6}
  4. [Order of Operations] Subtract:                                                                       \displaystyle \frac{-25}{6}
  5. [Fraction] Convert to proper:                                                                           \displaystyle -4 \frac{1}{6}
5 0
2 years ago
Mrs. Curtis wants to buy online tickets for a concert. Two options are given here.
pshichka [43]
Option 1- y= 53x+10
Option 2- y= 55x 
55x+10=53x
-53x     -53x
2x=10
x=5 
6 0
3 years ago
Solve for the unknown: <br><br> 2z - (z-1) = 5z - 15
faltersainse [42]
Z equals 4. See attached

8 0
3 years ago
Read 2 more answers
What is the mean,median,mode ,and range of 24,12,10,15,10,22,12
just olya [345]

Answer:

24, 12, 10, 15, 10, 22, 12

mean:  7

median: 12

mode:  12

Range: 14

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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