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3 years ago

9

...............................This:

2 answers:

pychu [463]3 years ago

7 0

Y=1/2x+2 because 1/2 is the slope and 2 is the y-intercept

MissTica3 years ago

4 0

It’s the first one 1/2x+2

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katrin [286]

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qwelly [4]

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3 years ago

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For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Oksanka [162]

$f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}$

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4 years ago

-4(7a+5) = -160 Show All Work!

Fynjy0 [20]

Answer:

a=-20

Step-by-step explanation:

-4(7a+5)=-160

7a+(-20)=-160 Multiply -4 and 5

7a=-140 Subtract -20 from -160

a=-20 Divide 7 by -140

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3 years ago