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NNADVOKAT [17]
3 years ago
7

99 POINTS.... PLEASEEEEE HELP !!!

Mathematics
1 answer:
Nookie1986 [14]3 years ago
5 0
You have a lot of questions here, I can help with some.

1) To find the inverse, switch the x and f(x) and solve for f(x).
x = 3f(x) - 7
x + 7 = 3(f(x)
(x + 7) / 3 = f(x)

2) It is a function, because each input pairs with only 1 output.

3) Any diagonal line would be a function.

4 - 8 (We can't do without the diagram)

9) f(-9) = 3(-9) - 6
    f(-9) = -27 - 6 
    f(-9) = -33

10) f(-2) = 42 + 3
      f(-2) = 45 
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G. Write the equation of the line in slope-intercept form.
Neko [114]

Answer:

  • y= x-2
  • y = 4/5 x+39/5

Step-by-step explanation:

1.

(3,1) and\:perpendicular \:to \: y = -x+1\\(3,1) = (x,y)\\m = -1\\In\: perpendicularism ; m_2 = \frac{-1}{m_1} \\m_2 = \frac{-1}{-1} \\m_2 =1\\y = mx+c\\1 = 1(3) +c\\1=3+c\\1-3=c\\-2 =c\\Substitute \:new \:values\:into\\y =mx+c\\y = 1x -2\\y = x-2

2.

(-1,7) =(x_1,y_1)\\\\5y = 4x+5\\\\Write\:in\:y=mx+c\:form\\\frac{5y}{5} = \frac{4}{5} x + \frac{5}{5} \\y = \frac{4}{5} x +1\\m = \frac{4}{5} \\\\y -y_1=m(x-x_1)\\y-7=\frac{4}{5} (x -(-1)\\y -7 = 4/5(x+1)\\y -7 = 4/5x +4/5\\\\y = \frac{4}{5} x+\frac{4}{5} +7\\\\y = \frac{4}{5} x +39/5

6 0
3 years ago
4x^9y^-4 / x^8y^-6<br><br> Evaluate the expression<br><br> for x = 5 and y = 2.<br><br> ху
kramer

Answer:

80

Step-by-step explanation:

SIMP - lifiy the equation: (see what I did there :D)

4xy^2 = 4(5)(2^2) = 80

ANSWER: 80

3 0
3 years ago
What is the absolute value of -0.58?
cluponka [151]
.58. Absolute value gets rid of negative.
7 0
3 years ago
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What is a/3+4=6? I can't figure it out!
kotykmax [81]

Answer:

a = 6

Step-by-step explanation:

first try to divide all numbers by 3 and the add 4 to it until you get 6

8 0
3 years ago
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Is the quotient of two rational numbers always a rational number? Explain.
Natasha_Volkova [10]

Answer:

Yes,

Step-by-step explananation

The quotient of two rational numbers is always rational, and the reason for this lies in the fact that the product of two integers is always an rational number.

6 0
4 years ago
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