A science experiment begins with a metal at -100° Celsius. The following function describes the temperature change per minute: f(x) = 89x - 100°. How will the graph of this function change if the metal is at 25° at the start of the experiment?

The line will shift vertically up by 125°.
The line will shift vertically up by 25°.
The line will shift vertically down by 125°.
The line will shift vertically down by 25°.

Question

A science experiment begins with a metal at -100° Celsius. The following function describes the temperature change per minute: f(x) = 89x - 100°. How will the graph of this function change if the metal is at 25° at the start of the experiment?

 The line will shift vertically up by 125°.
 The line will shift vertically up by 25°.
 The line will shift vertically down by 125°.
 The line will shift vertically down by 25°.

gorv · Answer

first draw initial graph

kidthatbro8 · Answer

i'm not sure how to do that...this question is confusing.

gorv · Answer

u know how to graph a line ??

kidthatbro8 · Answer

yes, but not really f(x) equations..

gorv · Answer

replace f(x) by y

gorv · Answer

y=89x-100

kidthatbro8 · Answer

okay, would we work that out like an equation, or no ?

gorv · Answer

yeah we work out it like a equation f(x) is nothing but y

kidthatbro8 · Answer

okay, so y = 89x - 100. we would first add 100 to both sides ?

gorv · Answer

lol we need to graph it

gorv · Answer

u know how to plot a line ??

kidthatbro8 · Answer

how to plot points ? yes. how to get the points ? not really.

kidthatbro8 · Answer

how am i supposed to work this out ? i don't know how to graph it ?