Given the linear equation y=-7/4x-1, find the y-coordinates of the points (-4, )(0, ) and )4, )... Please show all work... YOU WILL GET THE MEDAL.

Question

Given the linear equation y=-7/4x-1, find the y-coordinates of the points (-4,  )(0,  ) and )4,  )... Please show all work... YOU WILL GET THE MEDAL.

anonymous · Answer

You can find the y coordinate by substituting in the x coordinate given into the equation.  Here I'll show you the first one.
$$y =( -7/ 4)(-4) -1$$
y= 7 -1
y =6
So the first pair would be (-4,6)
Now try the next two :)

anonymous · Answer

so the 4's cancels eachother out

aroub · Answer

yes! :)

anonymous · Answer

Yes

anonymous · Answer

Now, try when x = 0 for the second coordinate point.

anonymous · Answer

y=(-7/4)(0)-1
y=0-1
y=1

right

anonymous · Answer

almost, very close.  the negative doesn't disappear.  so y = -1 giving you a coordinate point of (0,-1)

anonymous · Answer

okay,and the same for the last one as done for the first one but with a negative. right

anonymous · Answer

Yes after substituting the 4.  You are left with y = -7 - 1

anonymous · Answer

ok thank you for teaching me you get the medal