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3 years ago

F(h)=-6h-2/3 Find f(-3)

1 answer:

8 0

<span>f(h) = -6h - 2/3

For f(-3), anywhere we see h in the equation we substitute -3.

f(-3) = -6(-3) - 2/3 = 18 -2/3 = 17 1/3.

f(-3) = 17 1/3 or 52/3.

So that's our answer.</span>

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What is is value of f(8)

Vadim26 [7]

Answer:

Wouldn't it just be 8?

Step-by-step explanation:

f(8)

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8f^0

8x1

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3 years ago

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4 years ago

Area and Circumference of Circles: A recipe for a 14 in pizza calls for a 15 oz can of pizza sauce. How much sauce would be need

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Answer:

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Step-by-step explanation:

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4 years ago

Please explain the steps on how to solve -1-3[4^2-3(-6)] ? The answer is -103

masya89 [10]

-1-3[16+18]
-1-3[34]
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6 0

3 years ago

Read 2 more answers

Can anyone help me ?

Delvig [45]

Answer:

see below

Step-by-step explanation:

the relation is

$y=5x+28$

$f(x)=5x+28$

we can use it because for every value of x there is just one value, as the definition of function states

$f(22)=?\\\\f(22)=5(22)+28\\\\f(22)=110+28\\\\f(22)=138$

and

$f(?)=128\\\\5x+28=128\\\\5x=128-28\\\\5x=100\\\\x=20$

the points are

(-2,2) with

$x_1=-2\\\\y_1=2$

(1,-3) with

$x_2=1\\\\y_2=-3$

so the change in y is $y_2-y_1$

$-3-(2)=-5$

and the change in x is $x_2-x_1$

$1-(-2)=3$

so the slope is

$\frac{\:Change\:in\:y}{Change\:in\:x} =\frac{-5}{3} =-\frac{5}{3}$

and the general formula is

$y=ax+b$

so with a=-5/3

we plug in point 1

$2=-\frac{5}{3} (-2)+b\\\\2=\frac{10}{3} +b\\\\6=10+3b\\\\6-10=3b\\\\-4=3b\\\\-\frac{4}{3}=b$ so the formula is

$y=-\frac{5}{3}x-\frac{4}{3}$

expressed as a function is

$f(x)=-\frac{5}{3}x-\frac{4}{3}$

this is bassically all the work of number 2, so we have

(-2,-5)

$x_1=-2\\\\y_1=-5$

(4,31)

$x_2=4\\\\y_2=31$

so the slope will be

the change in y $y_2-y_1$

$31-(-5)=36$

the change in x $x_2-x_1$

$4-(-2)=6$

so the slope will be

$\frac{\Delta\:y}{\Delta\:x}=\frac{36}{6} =6$ (the triangle means change)

so the formula we have

$y=mx+b\\\\y=6x+b$

we plug some point, let's say 1

$-5=6(-2)+b\\\\-5=-12+b\\\\-5+12=b\\\\7=b$

so the formula is

$y=6x+7$

as a function is

$f(x)=6x+7$

so there you have it

Just as a note, for the next one, put more points :)

7 0

3 years ago