A line passes through the point (6, -7) and has a slope of -2 . Write an equation for this line.
i think there was a formula for that but i forgot it
Use the formula Y = mx + b
The point you gave us has values (x,y) and the slope you gave us is 'm'
Knowing this...
-7 = (-2)(6) + b
-7 = -12 + b
b = 5
Now we write out the formula using the y-intercept(b) we calculated
Y = -2x + 5
Hello, phyfreak!
A line passes through the point (6, -7) and has a slope of -2 .
Write an equation for this line.
i think there was a formula for that, but i forgot it.
Point-Slope Formula
The line through the point $\displaystyle (x_1,y_1)$ and having the slope $\displaystyle m$,
. . has the equation: .$\displaystyle y - y_1 \:=\:m(x-x_1)$