Pre Algebra Review

How do you find the slope between two points (x1, y1) and (x2, y2)?

• m = (y2 - y1) / (x2 - x1)

• m = (x2 - x1) / (y2 - y1)

• m = (y1 + y2) / (x1 + x2)

• m = (y1 - y2) / (x2 - x1)

What is the y-intercept in the equation y=mx+b?

• The value of y when x=0, represented by 'b' in the equation.

• The slope of the line represented by 'm'.

• The point where the line crosses the x-axis.

• The value of x when y=0.

What is the formula for the slope-intercept form of a line?

• y = mx + b

• y = bx + m

• y = mx - b

• y = m + bx

What is the slope of the line that passes through the points (1, 2) and (3, 6)?

• 1

• 2

• 3

• 4

If m=2 and b=3, what is the slope-intercept equation?

• y=2x+3

• y=3x+2

• y=2x-3

• y=3x-2

What is a function?

• A function is a relation where each input has exactly one output.

• A function is a type of variable that can change.

• A function is a collection of unrelated values.

• A function is a graphical representation of data.

What does 'm' represent in the slope-intercept form of a line (y=mx+b)?

• The y-intercept of the line.

• The slope of the line.

• The x-intercept of the line.

• The length of the line segment.

What is the y-intercept of the line with the equation y=-3x+5?

• 3

• 5

• -3

• 0

If the slope of a line is 0, what does that indicate about the line?

• A slope of 0 indicates a horizontal line.

• A slope of 0 indicates a vertical line.

• A slope of 0 indicates an increasing line.

• A slope of 0 indicates a decreasing line.

If the slope of a line is undefined, what does that indicate about the line?

• A horizontal line

• A vertical line

• A diagonal line

• A curved line