Quiky question before my test tommorow morning

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SUMMARY

This discussion addresses two mathematical problems relevant for a test preparation. The first problem involves finding the intersection of the graphs defined by the equations x² + y² = 41 and x + 2y = 6. The solution involves substituting x = 6 - 2y into the first equation. The second problem asks for the equivalent function of a piecewise function, which is determined to be g(x) = |x - 3|, corresponding to option a). Both problems emphasize the importance of understanding graph intersections and piecewise functions.

PREREQUISITES
  • Understanding of algebraic equations and graphing
  • Knowledge of substitution and elimination methods for solving systems of equations
  • Familiarity with piecewise functions and their representations
  • Basic concepts of absolute value functions
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  • Practice solving systems of equations using substitution and elimination methods
  • Study the properties and applications of piecewise functions
  • Explore graphing techniques for quadratic equations
  • Learn about absolute value functions and their transformations
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Students preparing for mathematics tests, particularly those focusing on algebra, graphing, and function analysis.

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quiky question before my test tommorow morning!

i can't believe i duno where to find out how to do this:

1) find intersections of the graphs:
x^2+y^2=41
x+2y=6

and

2)which of the following function is equivalent to the following piece function.

x-3, if x>=3
f(x)={
3-x, if x<3

a) g(x)=|x-3| b) g(x)=|x+3| c) g(x)=-|x-3| d)-|x+3| e) none of these

this is off like a study guide checklist for the test.
 
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EasyStyle4747 said:
1) find intersections of the graphs:
x^2+y^2=41
x+2y=6

Rearrange x + 2y = 6 to get x = 6 - 2y. Then plug this into x2 + y2 = 41. You get:

(6 - 2y)2 + y2 - 41 = 0
 


Hi there,

I understand that you have a quick question before your test tomorrow morning. It sounds like you are struggling with some math problems. I would suggest reviewing your notes and practicing similar problems to prepare for your test.

For the first question, you can find the intersection of the two graphs by solving the system of equations. You can do this by substitution or elimination method. I would suggest looking at some examples and practicing similar problems to understand the concept better.

For the second question, the equivalent function is g(x)=|x-3|, option a). This is because the piecewise function given is equal to the absolute value of x-3, which is represented by the function g(x).

I hope this helps and good luck on your test tomorrow! Remember to stay calm and confident, and trust in your preparation. You got this!
 

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