## edancer98 2 years ago The vertex is (1, 4) and the sign of a is -2 How do I find the range?

1. dpaInc

are u talking about a parabola?

2. edancer98

no the lines are linear

3. dpaInc

so what exactly is the vertex you're referring to?

4. edancer98

Sorry I know that I sound stupid right now. lol The vertex is a graph I had to draw. The graph was y = -2 Ix - 1I + 4

5. dpaInc

no you don't sound that way... math is so broad that vertex could mean a lot of things... i'm just trying to clarify the question... and good thing i did because i thought the question was referring to a parabola... :)

6. edancer98

thankyou :P

7. dpaInc

so the graph is an absolute value function... y = -2|x-1| + 4

8. dpaInc

because of the -2, the vertex will be HIGHEST point in the graph....

9. dpaInc

HINT: the highest value for y is 4...

10. edancer98

So the range would be all real numbers between -2 and 4?

11. dpaInc

no... the range is: all real numbers less than or equal to 4

12. edancer98

I get it! :D Thankyou!

13. dpaInc

yw...:)

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