Question

1.Write the equation of the line which passes through (5, –2) and is parallel to x = 4

Answer 1

x=4 is a vertical so it has no slope (or it's equal to infinty) so the line through (5,-2) has to be vertical as well

Answer 2

So does that mean there is no line that can be parallel to (5,-2) @helder_edwin

Answer 3

parallel line have same gradient ,the line x=4 has a slope of zero which means the line which passes through(5,-2) has slope 0,since y=mx+c,then -2=0*5+c,which implies c=-2,then the equation of the line is x=-2

Answer 4

no!
vertical lines have the form
\[ x=z \]
where z is any number

@juan_chi is right with the answer though x=4 DOES NOT have slope zero

Answer 5

sorry the answer x=-2 is not right

Answer 6

plus remember the ordered pair is (x,y)

Answer 7

So what would be the answer ?

Answer 8

come on
\[ (x,y)=(5,-2) \]

Answer 9

So would the answer be 5=-2x+4 ?

Answer 10

no
\[ (a,b)=(c,d)\quad \text{if and only if}\quad a=c\wedge b=d \]

Answer 11

Ok so x=5

Answer 12

yes!

Answer 13

Thank You !

Answer 14

sure