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What is a and b . y=ab^x

What is a and b . y=ab^x-example-1
User SeaBiscuit
by
7.2k points

1 Answer

3 votes

Answer:

a = 4, b =
(1)/(2)

Explanation:

Use any ordered pairs of points from the table.

Substitute into the equation and solve for a and b, that is

Using (0, 4), then

4 = a
b^(0) = a

Hence a = 4

Using (2, 1), then

1 = 4
b^(2) ( divide both sides by 4 )

b² =
(1)/(4) ( take the square root of both sides )

b =
(1)/(2)

Equation is

y = 4
((1)/(2)) ^(x)

User Broadband
by
8.1k points

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