Question

topic test finding the slope of a line
finding the slope of a line
topic: finding the slope of a line
rogress:
the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your ans
match the line described on the left with the slope of the line on the right
x = 1 undefined
6x + 3y = -18 -2
the line through (5,7) and (1, -5) 0
the line through (2, 0) and (- 2, 0) 3
clear click and hold an item in one column, then drag it to the matching item in the other co
target before releasing. the target will highlight or the cursor will change. need help?

Explanation:

Step1: Analyze $x=1$

Vertical lines have undefined slope.

Step2: Simplify $6x+3y=-18$

Solve for $y$: $y=-2x-6$, slope is $-2$.

Step3: Slope through $(5,7)$ & $(1,-5)$

Use formula $\frac{y2-y1}{x2-x1}=\frac{-5-7}{1-5}=\frac{-12}{-4}=3$.

Step4: Slope through $(2,0)$ & $(-2,0)$

Use formula $\frac{0-0}{-2-2}=\frac{0}{-4}=0$.

Answer:

$x = 1$ → undefined
$6x + 3y = -18$ → $-2$
the line through $(5,7)$ and $(1, -5)$ → $3$
the line through $(2, 0)$ and $(-2, 0)$ → $0$