Question

Write the equation of the line that is parallel to the line 3x − y = −3 and passes through the point (4, −2)

Answer 1

so the slope of the line can be found with -b/2a so the slope is -(-3)/6 or 1/2
parallel lines have the same slope so now that we have the slope, we can use point slope form
y-y1=m(x-x1)
y+2=1/2(x-4)
y+2=1/2x-2 and i guess you want this in slope intercept form so
y=1/2x-4

Answer 2

explain -b/2a mechanism

Answer 3

sorry its supposed to be -a/b so the slope is -3/-1=3
the same other reasoning would follow jsut change the slop -b/2a is to find the axis of symmetry for a parabola sorry!
y-y1=m(x-x1)
y+2=3(x-4)
y+2=3x-12
y=3x-14

Answer 4

whats a and what is b

a is the slope x,
b is the value with y ?

Answer 5

standard form is ax+by=c
a is the coefficient to x
b is the coefficient to y

Answer 6

yes thanks I understand now

Answer 7

sorry about the mix up

Answer 8

not a problem for me, I have not applied any of it yet ;)

Answer 9

still really sorry i think i was helping someone with parabolas earlier and it was stuck in my head