Question

Select the equations of the lines that are parallel to the line whose equation is y = 3x + 5.

6x + 2y = 12
-3x + y = 8
3y = 9x
y = -1/3x

Answer 1

so the line is in the form y = mx +c
which indicates it's a straight line, the y intercept is 5 and the gradient is 3
now if you wanted a line to be parallel to another line, what would have to be the same:
y intercept?
gradient?
all the y values?

Answer 2

gradient

Answer 3

cool, so which of the above possible answers has the same gradient?

Answer 4

b adn d??

Answer 5

1 right
b does have the same gradient

Answer 6

c

Answer 7

d has a negative gradient, whick means the slope is running downwards, so it cant be the same as our example
which other has a slope of 3? b and....

Answer 8

spot on dude, c and b

Answer 9

slaters

Answer 10

tyty

Answer 11

no worries ;)