The rule is x→y=−2x. Can you mark all the points that fit the rule on a coordinate plane?

3/6   and 9/18

step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

m∠a is 90°

m∠b is 40°