Algebra 1 Quiz

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Definition: - In arithmetic we use numbers but in algebra we utilize the letters and sign to represent a mathematical problem.
 

For example: - Sum of 9 pencils and 7 books is $ 200, we can represent this in algebraic equation as
            9 x + 7 y = 200          where   x = price of one pencil
                                                            y = price of one book.
 

Let’s work for few Algebra 1 quiz:
 

Quiz 1:  Write the value of 6^3.
 

Solution:-  6 ^ 3 = 6 * 6 * 6 = 216
Therefore, the value of 6^3 =216.
 

Quiz 2: - In which quadrant (3, -1) lie.
 

Solution: - (x, y) is a coordinate where x is the value of abscissa and y is the value of ordinate.
So coordinate = 3 and abscissa = -1 for the point (3, -1)
Hence for x = 3 we will move to the right, the positive x – axis and
For y = - 1 we go down, the negative y – axis.
Hence (3, -1) lie on the 4th quadrant.
 

Quiz 3: - Find the value of a for the following linear equation:
            5 a + 10 = 15

Solution: -
5a+10=15
5 a= 15 – 10
5 a= 5
a = 5 / 5
a =1
Therefore the value of a= 1
 

Quiz 4: - Find the value of the following algebraic expression for k = 2
            2k+5

Solution: -We need to substitute the value k = 2 in the given expression
            2k+5=2(2)+5=4+5=9
 


 

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