Question

Choose the slope-intercept equation of the line that passes through the point (6, 4) and is parallel to y =1/3x-3
A) y=3x-14
B) y= 1/3x+2
C) y=-3x+22
D) y=-1/3x+8

Answer 1

since both lines are parallel what do u know?

Answer 2

well im not really sure how to do these..

Answer 3

okay since the line is parallel to y =1/3x-3, then 1/3 is the gradient since y=mx+c where m is gradient, therefore the answer straight away is B where gradient of B is also 1/3

Answer 4

Ohhhh! Thank you so much :)

Answer 5

@LauKang could you help me with a couple others???? :)

Answer 6

no problem

Answer 7

Choose the slope-intercept equation of the line that passes through the point (2, -3) and is perpendicular to y = 2/3x+3
A) y=-3/2x
B) y=3/2x-6
C) y=-2/3-5/3
D) y=2/3x-13/3

Answer 8

okay for perpendicular lines note this

Answer 9

if line A is perpendicular to Line B, gradient of A X gradient of B = -1