I’ve been stuck on this for a long time now and it’s difficult for me i’ve tried solving it but i can’t can someone me out i need it
answers
a) the relationship is linear ; y+4=2(x-1)
b) the relationship is not linear
c) the relationship is linear; y-1=-2(x+4)
d) the relationship is linear y; +4= -1/2 (x-1)

Yes it is linear and  D

Step-by-step explanation:

First, find if the slope is constant using the slope formula or other methods.

(y2-y1)/(x2-x1), when you do, you find that the slope is always equal to -1/2.

Now that you know to slope, you can solve for the b to find the equation.

y=-1/2x+b, plug in any point

(-4)=-1/2(1)+b, simplify

-3.5=b

y=-1/2x-3.5, now convert to vertex form

y=-1/2(x-1)-4 or y+4=-1/2(x-1)

So, D is the answer

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4