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Mathematics 15 Online
OpenStudy (anonymous):

medal and fan !! Please help! What is the average rate of change from x = 0 to x = 4?

OpenStudy (anonymous):

OpenStudy (anonymous):

0 1 4 8

OpenStudy (mrnood):

the average rate of change is \[\frac{ y _{2} -y _{1}}{ x _{2}-x _{1} }\] read the x1,y1,x2,y2 values from the graph and put them in the equation....

OpenStudy (anonymous):

in not sure the x1,y1,x2,y2 values or how to find them

OpenStudy (mrnood):

The question tells you x2=4, x1=0 Read the y values at those points from the graph and put them in the equation

OpenStudy (anonymous):

i dont know what im doing ?

OpenStudy (mrnood):

LOOK at the graph. When x = 0 what does y =? Whne x = 4 what does y =?

OpenStudy (anonymous):

x,0,0 x= 4,0 ?

OpenStudy (mrnood):

ok good so what is x2-x1 what is y2-y1

OpenStudy (anonymous):

in comes out to be 4/0

OpenStudy (mrnood):

NO - check again - very nearly there

OpenStudy (anonymous):

???? Im Confused ...

OpenStudy (mrnood):

it's y2-y1/x2-x1 you have it upside down

OpenStudy (anonymous):

0/4?

OpenStudy (mrnood):

YES! well done

OpenStudy (anonymous):

okay now what do it do ?

OpenStudy (mrnood):

that's the answer! what does 0 divide by 4 equal? (or 0 divided by anything?)

OpenStudy (anonymous):

0

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