3 years ago

36. If f(x) = 12 - 3x, find f (3) + 1

Mathematics

1 answer:

e-lub [12.9K]3 years ago

7 0

Answer:

Step-by-step explanation:

f(3) = 12 - 3(3)

= 12 - 9

= 3

f(3) =3

f(3) + 1

= 3 + 1

= 4

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mart [117]

Answer:

infinitely many solutions

Step-by-step explanation:

We want to find solution to the system:

-4y=-20x+40

y+10=5x

We make y the subject in the second equation to get;

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We substitute y=5x-10 into the top equation to get:

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We expand to obtain;

$- 20x + 40= - 20x + 40$

This implies that:

$40 = 40$

Therefore the system has infinitely many solutions.

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