keonwillkw26 keonwillkw26
  • 06-01-2019
  • Mathematics
contestada

What value of b will make the point {3,-1} lie on the line y=mx-7 in standard {x,y} coordinate plane?

A. -10
B. -8/3
C. 2
D. 8/3
E. 10

Respuesta :

boffeemadrid
boffeemadrid boffeemadrid
  • 16-01-2019

Answer:

m=2

Step-by-step explanation:

We are given a line y=mx-7 and the point lying on the given line is (3,-1) in the standard {x,y} coordinate plane.

Therefore, substituting the values of x=3 and y=-1 in the given line, we have,

⇒[tex]y=mx-7[/tex]

⇒[tex](-1)=m(3)-7[/tex]

⇒[tex]-1+7=3m[/tex]

⇒[tex]6=3m[/tex]

⇒[tex]m=2[/tex]

Hence,the value of m will be equal to two.

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