What is the equation of the line that passes through the point (-2,7)(−2,7) and has a slope of -2−2?

Answer 1

You repeat things here; I assume the slope is -2, and there is a point at (-2,7)?

Let's use slope-intercept form, where m=slope, and b= the y-intercept. y=mx+b

Plugging in the slope, we get y=-2x+b.

Plugging in the coordinate pair (-2,7) for our (x,y), we get 7=-2(-2)+b. Simplify: 7=4+b. Subtract 4 from both sides to get 3=b.

Now that we have both m and b, we can write the equation: y=-2x+3.

I hope this helps, and have fun mathing! (Also, let me know if you have a question?)

Liz Z.

Answer 2

equation of line is y = mx + b, where m is slope and b is y-intercept

given the m = -2 and (x,y) = (-2,7)

plug those values into the equation and solve for b:

7 = -2(-2) + b

3 = b

y = -2x + 3