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Intermediate Algebra

Last updated almost 8 years ago

5 questions

1

Question 1

1.

For what value of the constant K does the equation 2x + Kx = 3 have one solution?

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Question 2

2.

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For what value of the consatnt K does the equation Kx2 + 2x = 1 have two real solutions?

Question 3

3.

For what value of the constant K does the system of equations 2x - y = 4 and 6x - 3y = 3K have an infinite number of solutions?

Question 4

4.

Find M so that the lines with equations -2x + My = 5 and 4y + x = -9 are perpendicular.

Question 5

5.

John's annual salary after a raise of 15% is $45,000. What was his salary before the raise?