GED Math Study Guide

What is the probability of selecting a defective toy if the probability of a toy being defective is 1/50?

• 1/25

• 1/50

• 1/100

• 1/10

How do you find the coordinates of a point on a coordinate grid?

• By identifying the horizontal (x) and vertical (y) positions of the point.

• By measuring the distance from the origin to the point.

• By calculating the area of the grid square containing the point.

• By determining the color of the point on the grid.

What is the formula for calculating the probability of independent events occurring together?

• P(A and B) = P(A) + P(B)

• P(A and B) = P(A) * P(B)

• P(A and B) = P(A) - P(B)

• P(A and B) = P(A) / P(B)

What is the distance between -4 and 5 on a number line?

• 7 units

• 8 units

• 9 units

• 10 units

What is the difference of 6 less than 3 times a number x?

• 3x + 6

• 3x - 6

• 6 - 3x

• 3x / 6

What is the distance formula for two points (x1, y1) and (x2, y2) in a plane?

• Distance = √((x2 - x1)² + (y2 - y1)²)

• Distance = |x2 - x1| + |y2 - y1|

• Distance = (x2 - x1)² + (y2 - y1)²

• Distance = √((x2 + x1)² + (y2 + y1)²)

How do you calculate the distance between two points on a number line?

• Distance = |point1 - point2|.

• Distance = point1 + point2.

• Distance = point1 - point2.

• Distance = |point1 + point2|.

What is the expression for the sum of 4 and 2 times a number x?

• 4 + 2x

• 2 + 4x

• 4x + 2

• 2 + x

What are the coordinates of point J if it is plotted at (-4, 1)?

• (-4, 1)

• (4, -1)

• (-1, 4)

• (1, -4)

What does it mean for an expression to be undefined in the set of real numbers?

• An expression is undefined if it involves division by zero or other operations that do not yield a real number.

• An expression is undefined if it contains imaginary numbers only.

• An expression is undefined if it is a polynomial of degree greater than two.

• An expression is undefined if it has no numerical value.