3 years ago

Heres a graph of linear function write equation

Mathematics

1 answer:

REY [17]3 years ago

7 0

Answer:

y= 3/4x + 2

Step-by-step explanation:

slope= y2-y1 / x2-x1

x2 y2 x1 y1

(8, 8) (0 ,2)

8-2/8-0

6/8

3/4

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3 years ago

What are the values of a and b?<br> a=<br> b=

Basile [38]

Answer:

The values of a and b are:

a = 2

$b=4$

Step-by-step explanation:

Given the exponential model

$y=a\cdot \:b^x$

Given the points

(0, 2) and (3, 128)

We know that the y-intercept of $y=a\cdot \:b^x$ is (0, a).

a = 2

putting x = 3, y = 128 and a = 2

$y=a\cdot \:b^x$

$128=2\cdot \:b^3$

Switching sides

$2b^3=128$

$\frac{2b^3}{2}=\frac{128}{2}$

$b^3=64$

Taking the real value such as:

$\mathrm{For\:}x^3=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt[3]{f\left(a\right)}$

$b=\sqrt[3]{64}$

$b=\sqrt[3]{4^3}$

$b=4$

Therefore,

a = 2

$b=4$

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3 years ago