What is the range of the following function? Graph: http://prntscr.com/cjhq0j a. y -4

Question

What is the range of the following function?

Graph:  http://prntscr.com/cjhq0j


		
a. y < -4
		
b. y ≥ -4
		
c. y ≤ -4
		
d. y > -4

quz34 · Answer

@welshfella

jiteshmeghwal9 · Answer

From the graph it's clear that the y coordinate is ranging from $(-4,\infty)$

will.h · Answer

range is the y values that the function can have in it's coordinates 
you may notice that the vertex is at (1,-4) does the function have y values below -4? no so therefor the range would be $$y \ge -4$$
why bigger than or equal to? we picked that because it can be -4 and all values above -4

jiteshmeghwal9 · Answer

This implies that the range is $(-4,\infty)$

will.h · Answer

but just give them some explanations lol they need it more

quz34 · Answer

lol thanks guys.

welshfella · Answer

[-4,+infinity)  in interval notation.

welshfella · Answer

- square parentheses because it includes -4

will.h · Answer

well ending welsh :)

welshfella · Answer

jites answer was not correct.

welshfella · Answer

ty

welshfella · Answer

lol

jiteshmeghwal9 · Answer

Oh yeah I forgot to include-4,in interval

quz34 · Answer

wait my answer is $$y \ge - 4$$ right?

will.h · Answer

yes