Question

A function f is defined by f(x)=5x−9. If x increases by 2, by how much does f(x) increase?

Answer 1

f(x) will increase by 10 units

Step-by-step explanation:

The function f is defined by ; f(x) =5x -9

Forming a table for the function

x               f(x)

-1              -14

0               -9

1                 -4

2                 1

Increasing x by 2  f(x) will be

   x          New x        f(x)    

-1+2 =1        1                 -4

0+2=2         2                1

1+2=3           3               6

2+2=4          4               11

Change of value of f(x) will be

-4--14 = -4+14=10

1--9=1+9=10

6--4=6+4=10

11-1=10

The increase is 10, hence f(x) will increase by 10 units

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Increasing functions:brainly.com/question/12448955

Keywords: function, increase

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