Answer:

Step-by-step explanation:
we have

Solve for y
That means ----> isolate the variable y
Subtract 4x both sides

Divide by 2 both sides

Convert in function form
Let

so

Answer:
she can knit 1mm/17.5min or she can knit 1mm in 17 minutes and 30 seconds.
you must substitute x in the equation given :)
examples:
when x is -2
therefore, y = 2(-2) + 3
y = -1
when x is 0
therefore, y = 2(0) + 3
y = 3
when x is 1
therefore, y = 2(1) + 3
y = 5
when x is 3
therefore, y = 2(3) + 3
y = 9
for (b) you only have to plot based on the table ;)
hope this helps