Linear Functions Equation Review

Why is it important to review linear functions?

• Because they are the foundation of calculus.

• Because some students may have forgotten them.

• Because they are the easiest type of functions.

• Because they are used in everyday life.

What is another name for the slope-intercept form?

• Point-slope form

• Quadratic form

• Y-intercept form

• Standard form

In the equation y = mx + b, what does 'm' represent?

• The y-intercept

• The constant term

• The slope

• The x-intercept

What is the general form of the point-slope equation?

• ax + by = c

• y = mx + b

• y2 - y1 = m(x2 - x1)

• y = a(x - h)^2 + k

In point-slope form, what do x1 and y1 represent?

• The x-intercept

• A given point on the line

• The y-intercept

• The slope

How do you determine the slope from a graph?

• By finding the y-intercept

• By multiplying the x and y coordinates

• By adding the x and y coordinates

• By dividing the change in y by the change in x

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

• 1

• 3

• 1/3

• 3/1

If a line has a slope of 2 and a y-intercept of 5, what is its equation in slope-intercept form?

• y = 5x - 2

• y = 2x + 5

• y = 2x - 5

• y = 5x + 2

What is the slope of a line that is perpendicular to a line with a slope of 3?

• -3

• 1/3

• -1/3

• 3

What must be true for two lines to be parallel?

• They must intersect at a 90-degree angle.

• They must have opposite slopes.

• They must have the same y-intercept.

• They must have the same slope.