21. given that a line y = x passes through the origin and up to the right, what would the line y = mx look like if m = 1/2?
a. passes through the origin and up to right
b. passes through the origin and up to the left
c. passes through (0, 1/2) and up to the right

a is the answer as the only change is the gradient being halved,

b would be if it was -1/2 and c would be1/2 x+1/2

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

2/5

step-by-step explanation: