Question

will some plz helpp



Which pair of points has a negative slope?
(–3, 17), (2, –8)
(–3, 13), (3, 17)
(4, 26), (–2, –10)
(4, 14), (–2, –4)

Answer 1

\(\Huge\color{blue}{ \sf slope= \frac{y_1-y_2}{x_1-x_2} }\)

plug each of your pair of points into the above formula.

Answer 2

ok but how would i know wich one am i going to plug in

Answer 3

you must put them all in

Answer 4

plug them in all of them

Answer 5

but like how am i goint to know wich one is goint to be y2 and y1 x2 x1 or do i just plug them in

Answer 6

Take choice A let's say. (–3, 17), (2, –8)

\[\large\text{}\\
\begin{array}{|c|c|}
\hline\textbf{x} &\textbf{y} \\
\hline\text{ } &\ \\
\text{-3} &17 \\
\text{2} &-8 \\
\\
\hline
\end{array}\]

Answer 7

listen to solomon hes great at this stuff ^_^

Answer 8

o ok thank to both of you :)

Answer 9

so

x1 is -3
x2 is 2
y1 is 17
y2 is -8

Answer 10

just plug them in

and tell me the slope that you get please.

Answer 11

ok

Answer 12

you didn't tell me what you got \(\normalsize\color{blue}{ \sf :(}\)

Answer 13

ok look for the first one it -2 - -3 and -8 - -17 and i got 1,-25
is it right ???

Answer 14

the y values are on the top and the x values on the bottom.
you got the y right, it's -25. The x is however (-2) - (3)

the 3 is positive not negative, so it's 1 minus (which is negative, not 2 minuses which is positive.

hence you get 25/(-5) which means that your slope is negative.

Answer 15

oo ok thanks