On the graph of y = (x + 2)^4 - 100, how many points are there whose coordinates are both negative integers?

Guest Jan 27, 2018

#1**+2 **

On the graph of y = (x + 2)^4 - 100, how many points are there whose coordinates are both negative integers?

When is y negative?

\((x+2)^4-100<0\\ (x+2)^4<100\\ -\sqrt{10}

That is 5 points where the coordinates are both negative integers:

(-5, -19), (-4,-84), (-3,-99), (-2,-100), (-1,-99)

Melody
Jan 27, 2018

#1**+2 **

Best Answer

On the graph of y = (x + 2)^4 - 100, how many points are there whose coordinates are both negative integers?

When is y negative?

\((x+2)^4-100<0\\ (x+2)^4<100\\ -\sqrt{10}

That is 5 points where the coordinates are both negative integers:

(-5, -19), (-4,-84), (-3,-99), (-2,-100), (-1,-99)

Melody
Jan 27, 2018