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1 year ago

If f(x)=x-5, then match each of the following.

Mathematics

1 answer:

4vir4ik [10]1 year ago

8 0

Answer:

Step-by-step explanation:Given f(x)=x-5

f(-1)= -1-5

= -6

f(0)=0-5

= -5

f(1)=1-5

= -4

f(2)=2-5

= -3

f(5)=5-5

f(8)=8-5

= 3

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Read 2 more answers

Create the equation of a quadratic function with a vertex of (5,6) and a y-intercept of -69

Elena L [17]

If the y-intercept is at -69, meaning the point is (0, -69), thus x = 0, y = -69

$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\
-------------------------------\\\\
vertex~(5,6)\quad 
\begin{cases}
x=5\\
y=6
\end{cases}\implies y=a(x-5)^2+6
\\\\\\
\textit{we also know that }
\begin{cases}
x=0\\
y=-69
\end{cases}\implies -69=a(0-5)^2+6
\\\\\\
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\\\\\\
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3 years ago

if thrice my age 6 years ago be subtracted from twice my present age the result is present age then my present age is what

aleksley [76]

Answer:

9 years

Step-by-step explanation:

Let the present age = x

Age 6 years ago = x - 6

Thrice my age 6 years ago = 3*(x -6) =3x - 3*6 = 3x - 18

Twice my present age = 2 *x = 2x

Thrice my age 6 years ago be subtracted from

twice my present age = 2x - (3x - 18)

2x - (3x - 18) = x

2x - 3x + 18 = x

-x + 18 = x {Add x to both sides}

18 = x + x

18 = 2x {Divide both sides by 2}

18/2 = x

x = 9 years

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3 years ago

Please help on the coordinate grid

tigry1 [53]

Answer:

Step-by-step explanation:

answer is 3

6 0

4 years ago