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Point R divides PQ in the ratio 1 : 3. if the x-coordinate of R is -1 and the x-coordinate of P is -3, what is the x-coordinate of Q?

A) -1/3

B) 3

C) 5

D) 6

E) -9

Respuesta :

Answer:

The answer is the third choice: C) 5

Step-by-step explanation:

All of the other choices are incorrect.

The other questions same as this one say it is -9 but that is incorrect.

abidemiokin

The x-coordinate of Q if  the x-coordinate of R is -1 and the x-coordinate of P is -3 is 5

Midpoint of a line

The formula for calculating the midpoint of a line divided in the ratio a:b is expressed as:

M

For the x-coordinate

X = (ax1+bx2/a+b)

Substitute the given parameters

X = 1(-1)+3(-3)/1-3
X = -1-9/1-3
X =-10/-2
X = 5

Hence the x-coordinate of Q if  the x-coordinate of R is -1 and the x-coordinate of P is -3 is 5

Learn more on coordinate here: https://brainly.com/question/17206319

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