ECON 02: Week 1

What is the answer to:

4 + [−1(−2 − 1)]^2 ?

• 24

• 13

• 11.5

• 6

What is the answer to:

16 − 3(8 − 3)^2 ÷ 5 ?

• 36

• 1

• 250

• -1

What is the answer to:

−{2x − [3 − (4 − 3x)] + 6x}

• 5x-1

• -5x+1

• -5x-1

• 5x+1

Which of these is a linear equation?

• y = 2x + 1

• y = x^2 -1

• y = 1/x

• y = X^4

This graph represents what equation?

• y = -2x + 5

• y = 2x - 5

• y = 2x + 5

• y = -2x^2 - 5

Suppose we have the equation x=22 ... is the coordinate (10,22) inside the line, outside the line, or on the line?

• Inside the line

• Outside of the line

• On the line

• Walking the line

Find "X" in this question:

2x + 5 = - x + 3

• X = 8/3

• X = 2

• X = -3/2

• X = -2/3

Find X:

2x + 5 = - x + 5

• x = 0

• x = 10

• x = 1

• x = 10/3

Suppose we have this system of equations:

2x + y = 8 & 3x - 2y = 5

What are the two methods through which we can solve this problem?

• Substitution

• Factorfication

• Elimination

• Circumference

Convert this problem into the slope-intercept form: y = mx + b

3/8 y= -1/4x + 5

• y = - 3/32x + 15/8

• y = -2/3x + 40/3

• y = -3/32x + 40/3

• y = -2/3x + 15/8