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asambeis [7]
3 years ago
5

Between any two points (x1, f(x1)) and (x2, f(x2)) is the slope of the line through the two points, and this line is called the

Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

secant hopefully that'll help :)

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Which equation represents a line that is perpendicular to line PQ?
valentinak56 [21]

Answer:

B. y=1/3x+4

Step-by-step explanation:

Hi there!

We are given the line PQ and we want to find the line that is perpendicular to it

Perpendicular lines have slopes that are negative and reciprocal. When they are multiplied together, the result is -1

So first, let's find the slope of the line PQ

The point P is given as (-8, 7) and the point Q is given as (-4, -5)

The formula for the slope calculated from two points is \frac{y_2-y_1}{x_2-x_1} where (x_{1} y_1) and (x_2, y_2) are points

We have the needed information for the slope, but let's label the values of the points to avoid any confusion

x1=-8

y1=7

x2=-4

y2=-5

Now substitute into the formula (m is the slope, and remember: the formula contains SUBTRACTION):

m=\frac{(-5-7)}{(-4--8)}

simplify

m=\frac{-5-7}{-4+8}

add

m=-12/4

divide

m=-3

So the slope of the line PQ is -3

As said above, perpendicular lines have slopes that have a product of -1

So to find the slope of the line perpendicular to PQ, use this formula:

-3m=-1

divide both sides by -3

m=1/3

The only line that has a slope of 1/3 is B (y=1/3x+4), so B is the answer.

Hope this helps!

3 0
3 years ago
Which expression matches the verbal description below?
Ronch [10]

Answer:

Quotient = division of one number by another

\implies \textsf{quotient of 30 and 6} = \sf \dfrac{30}{6}

\implies \textsf{3 subtracted from } \sf \dfrac{30}{6}=\dfrac{30}{6}-3

The quotient of 30 and 6 can also be written as the ratio 30 : 6

Therefore, the solution is (30:6) - 3

8 0
2 years ago
Read 2 more answers
Broccoli cost 1.50 per pound at a store. How much money does 32 ounce of broccoli cost.
spayn [35]

Answer:

$3.00

Step-by-step explanation:

Step 1. Calculate the <em>pounds of broccoli</em>.

Start with what you know: you want 32 oz of broccoli.

You know that 1 lb = 16 oz.     Calculate the weight in pounds

Wt  = 32 × 1/16

Wt  = 2 lb

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

Step 2. Calculate the <em>cost of the broccoli</em>.

$1.50 = 1 lb          Calculate the cost

Cost = 2 × 1.50/1

Cost = $3.00

7 0
3 years ago
Please Explain it- Math
Kipish [7]

Answer:

It is a horizontal line. The slope = 0.

The line cuts the y-axis at the point  

(0,9)

Step-by-step explanation:

y=9

is the equation of a horizontal line. The slope is 0.

If we write it in slope-intercept form we will have:

y=0x+9

This means that for any value of  x

that is chosen, the y-value is always 9 Hence  y

x=9.

The y-intercept is at the point  

(0,9)

5 0
3 years ago
What's 1/2 of 23 ????????????????????
max2010maxim [7]
Half of 23 would 11.5 and you had to do was divide 23 by 2


5 0
3 years ago
Read 2 more answers
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