Slope Review Vocabulary

What is the point and slope of the following linear equation in point slope form? y - 5 = 3(x + 2)

• Slope is 3, point is (5,-2)

• Slope is 3, point is (-5, 2)

• Slope is 3, point is (-2, 5)

• Slope is 3, point is (2, -5)

Answer explanation

Point slope form is y - y1 = m(x - x1) where (x1, y1) is a point and m is the slope.

The y's come first when looking at the equation.

Also, if you see a plus sign, think of that as - -, which means the number that follows is actually negative.

The graph of 3x + 9y = 15 and y = mx - 4 are parallel lines. What is the value of m?

• 3

• -3

• 1/3

• -1/3

What is the slope formula?

• 
• 
• 
• 

Slopes of perpendicular lines are...

• opposite (sign) reciprocals.

• opposites.

• identical.

• always 7.

In a word problem, which words are key words for slope?

• rate

• per

• each

• all of the above

Which answer choice(s) reference rate of change? Select all that apply.

• change in x divided by change in y

• how one quantity changes in relation to another quantity

• change in y divided by change in x

• slope

A horizontal line has...

• an undefined slope and the equation of the line begins with x=?

• an undefined slope and the equation of the line begins with y=?

• a zero slope and the equation of the line begins with x=?

• a zero slope and the equation of the line begins with y=?

The ratio of the change in the vertical direction (𝑦 direction) to the change in the horizontal direction (𝑥 direction)

• standard form

• slope-intercept form

• slope

• constant function

A linear equation written in the form 𝑦 = 𝑚𝑥 + 𝑏, where m is the slope and b is the y–intercept

• standard form

• slope-intercept form

• slope

• constant function

A function that has a constant rate of change.

• linear function 

• nonlinear function 

• discrete domain

• continuous domain