Question

Help please =*(



Line K is in the rectangular coordinate system. If line K is defined by the equation 3y=2x+6 and line K intersects the x-axis at point (a, b), then what is the value of a?

Answer 1

answer or step-by-step?

Answer 2

Okay i know the answer to this i need to know why we multiply the Y by 0 instead of the y-intercept.

Answer 3

y-coordinate = 0
not y-intercept

Answer 4

ook... don't know why Y gets multiplied by 0 in your given solution...
but maybe it was smth like: any point on x axis is (x, 0)

Answer 5

like i said yesterday
(a,b) <--- b is y-coordinate not y-intercept (b)

Answer 6

So why is it 3(0)=2(a)+6 instead of 3=2(a)+0

Answer 7

yep right

Answer 8

So you need the y-intercept to find the x-intercept?

Answer 9

not the y-intercept
y-coordinate that's what you need

Answer 10

But in this case we multiplied the coordinate by 0 and used the y-intercept to find the solution

Answer 11

to find x-intercept replace y for 0 always!!