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Write a function rule for the table

A) f(x)=-2x

B) f(x)=x-2

C) f(x)=x+2

D)f(x)=2x

Write a function rule for the table A) f(x)=-2x B) f(x)=x-2 C) f(x)=x+2 D)f(x)=2x-example-1
User Tesgoe
by
8.2k points

1 Answer

2 votes

Answer:

D.

Explanation:

Recall the slope is change of y over change of x which in this case the change in x is 1 while the change in y is 2 since the
y's are going up by 2 while the
x's are going up by 1.

So the slope is 2.

The one equation with slope 2 is D.

The answer is most likely D.

Let's check.


f(x)=2x


y=2x


y=2(-3)=-6 while
x=-3.


y=2(-2)=-4 while
x=-2.


y=2(-1)=-2 while
x=-1.


y=2(0)=0 while
x=0.

Also notice the
x is doubled (multiplied by 2) to get
y.

User Itsezc
by
8.6k points

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