Complete the equation for the linear function whose graph contains the point (7, 8) and has a slope of −1.2.

y =____x +____

@freckles

Question

Complete the equation for the linear function whose graph contains the point (7, 8) and has a slope of −1.2.
 
y =____x +____

@freckles

freckles · Answer

@TeenWolfGirl can i see your attempt on this one

freckles · Answer

You have to test what we have gone over at some point.

freckles · Answer

I think while I'm here is the best time to do that.

anonymous · Answer

ok i am back well it tells me my slope it -1.2

stamp · Answer

Your slope m is -1.2, so knowing y = mx + b and knowing the slope m, you can begin filling out your equation.

y = -1.2x + b

anonymous · Answer

y - 8 = -1.2* ( x - 7)
y - 8 = -1.2x + 8.4
y = -1.2x + 16.4

anonymous · Answer

correct?

stamp · Answer

In math, you use the things you know and put them together to help find what you do not know. Knowing the slope m and knowing y = mx + b allows you to put those two thoughts together to move closer toward your objective.

stamp · Answer

y - 8 = -6/5 (x - 7)

y = -6/5 x + 42/5 + 40/5

y = -6/5x + 82/5

y = -1.2x + 16.4

stamp · Answer

You are correct, well done.

freckles · Answer

good job

anonymous · Answer

thanks