Graphing Linear Functions: A Comprehensive Review

What does it mean for a function to be increasing?

• It goes from left to right.

• It goes from bottom to top.

• It goes from right to left.

• It goes from top to bottom.

What is the domain of a function that touches every x-value?

• All positive numbers

• All negative numbers

• All real numbers

• All integers

How do you find the x-intercept of the equation 2x = 12?

• Add 2 to get x = 14

• Subtract 2 to get x = 10

• Multiply by 2 to get x = 24

• Divide by 2 to get x = 6

What is the y-intercept of the equation -3y = 12?

• y = -4

• y = 4

• y = 3

• y = -3

If a line has a y-intercept of 3, what is its equation in slope-intercept form?

• y = x + 3

• y = mx + 3

• y = 3x + b

• y = 3

How do you determine if a line is horizontal or vertical?

• By checking if the slope is undefined

• By checking if the slope is zero

• By checking if the x-intercept is zero

• By checking if the y-intercept is zero

What is the slope of a line that goes up 1 and over 3?

• 1/3

• 3

• 1

• 3/1

What is the equation of a line with a slope of 2/5 and a y-intercept of -3?

• y = 2/5x - 3

• y = -2/5x - 3

• y = 2/5x + 3

• y = -2/5x + 3

Which graph has an undefined slope?

• A vertical line

• A line with a negative slope

• A line with a positive slope

• A horizontal line

Which graph represents the equation y = 2x + 3?

• A graph with y-intercept at 3 and slope -2

• A graph with y-intercept at -3 and slope 2

• A graph with y-intercept at 2 and slope 3

• A graph with y-intercept at 3 and slope 2