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SVEN [57.7K]
3 years ago
5

AB contains the points A(7, -11) and B(8,17). find the slope of a line perpendicular to AB

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0
Perpendiculare lines have slopes that multiply to -1

find slope
given (x1,y1) and (x2,y2) the slope would be (y2-y1)/(x2-x1)
so

given
(7,-11) and (8,17)
slope=(17-(-11))/(8-7)=(17+11)/1=28

28 times what=-1
divide by 24
what=-1/28

slope is -1/28

answer is B
Molodets [167]3 years ago
6 0
If a line were to be perpendicular from said points, the slope of it would be -1/28. Hope this helps!
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In the equation y=1/2x-3, what is the y-intercept? *
Andreyy89
First one is -3
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6 0
3 years ago
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Determine if the following relations represent y as a function of x.
lana [24]
<h3>Answers:</h3>
  • A) No, it is not a function
  • B) Yes it's a function
  • C) Not a function
  • D) Yes it's a function
  • E) Yes it's a function

================================================

Explanation:

If y has an exponent of 2, 4, 6, etc (basically any even number) then it leads to having inputs with multiple outputs.

Consider something like y^2 = x. If x = 100, then y = 10 or y = -10 are possible. A function can only have exactly one y output for any valid x input. Similar issues happen for things like y^4 = x and so on. So this is why A and C are not functions.

The other equations do not have y values with such exponents, so we can solve for y and have each x input lead to exactly one y output. Therefore, they are functions.

5 0
3 years ago
What valur of x makes the equation below true? 9^5 * 9^7=9^x
klasskru [66]

Answer:

x=12

Step-by-step explanation:

(9^5)(9^7)=9^x

282429536481=9^x

<em>Step 1: Flip the equation.</em>

9^x=282429536481

<em>Step 2: Solve Exponent.</em>

9^x=282429536481

log(9^x)=log(282429536481)(Take log of both sides)

x*(log(9))=log(282429536481)

x=log(282429536481)/log(9)

x=12

8 0
2 years ago
PLS HELP MEEEEEEE
ExtremeBDS [4]

Answer:

The one that wieghs 10 grams

Step-by-step explanation:

4 0
3 years ago
Help once more please
REY [17]

Answer:

84

Step-by-step explanation:

they are all equal sides so what you'd do is 28+28+28= 84

5 0
3 years ago
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