Question

Help!!!!!!!! Question is attached

Answer 1

Y=-2x+5
because the slope is -2 and the y intercept is 5 so it would be y=-2x+5

Answer 2

You only need two points to describe a linear equation because there are only two unknowns from y=mx+b, namely m, the slope and b the constant or y-intercept.

You can find the slope by finding the change in y divided by the change in x from any two points...here I'll use (0,5) and (1,3)...so the slope or m is:

m=(dy/dx)=(3-5)/(1-0)=-2 now are line so far is:

y=-2x+b  and we can use any point now to solve for be, I'll again use (1,3)

3=-2(1)+b

3=-2+b

5=b  now we have solved for both m and b our line is:

y=-2x+5