Sample quiz on slopes
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1. The slope of a line can be defined in words by: $\textrm{slope:=}\frac{\textrm{rise}}{\textrm{run}}$. Rise and run refer to $\cdots$
   
   the horizontal and vertical changes, respectively
   the vertical and horizontal changes, respectively
   the vertical change and $x$-intercept
   horizontal change and $y$-intercept
   
2. Let $(x_1,y_1)$ and $(x_2,y_2)$ be two points on a line. The slope of the line can be given by $\cdots$?
   
   $\frac{y_2-y_1}{x_2-x_1}$
   $\frac{y_2-y_1}{x_1-x_2}$
   $\frac{x_2-x_1}{y_2-y_1}$
   $\frac{y_2-x_2}{y_1-x_1}$
3. Find the slope of the line which contains the points $(0,0)$ and $(-3,4)$.
   
   $\frac{4}{3}$
   $\frac{3}{4}$
   $-\frac{3}{4}$
   $-\frac{4}{3}$
4. Find the slope of the line which contains the points $(-1,-1)$ and $(-2,3)$.
   
   $-2$
   $-4$
   $4$
   $0$
5. Find the slope of the line which contains the points $(2,3)$ and $(5,3)$
   
   $2$
   $0$
   $1$
   undefined
6. Find the slope of the line which contains the points $(-2,4)$ and $(-2,6)$
   
   undefined
   $0$
   $2$
   $-2$
7. The slope of any horizontal line (a line parallel to the $x$-axis) is $\cdots$?
   
   $1$
   $-1$
   zero
   undefined
8. The slope of any line that is parallel to the $y$-axis is $\cdots$
   
   $1$
   $-1$
   zero
   undefined
9. A line with a slope of $2$ contains the points $(1,3)$ and $(2,k)$. The value of $k$ is $\cdots$
   
   $5$
   $-5$
   $-1$
   difficult to determine
10. A line whose slope is undefined contains the points $(1,2)$ and $(h,4)$. The value of $h$ is $\cdots$?
    
    $4$
    $1$
    undefined
    difficult to determine
11. A line has a slope of $-3$ and contains the point $(1,-1)$. Which of the following points is on this line?
    
    $(4,-2)$
    $(2,-4)$
    $(0,1)$
    $(2,0)$
12. A line has zero slope and passes through $(0,1)$. Through which of the points below does the line also pass?
    
    $(0,3)$
    $(0,2)$
    $(-1,2)$
    $(-1,1)$
13. If $a$ is an integer, what is the slope of the line which contains the points $(a,a)$ and $(-a,-a)$?
    
    $1$
    $0$
    $a$
    undefined
14. Find the slope of the line which passes through the points $(-5,-1)$ and $(2,-11)$
    
    $-\frac{12}{7}$
    $-\frac{10}{7}$
    $\frac{10}{7}$
    $\frac{12}{7}$
15. A line has an undefined slope and passes through the point $(-1,1)$. The same line is likely to pass through which of the points below?
    
    $(1,-2)$
    $(1,-1)$
    $(-1,0)$
    $(-2,0)$