Answer:
[tex]y=-222[/tex]
Step-by-step explanation:
When "y varies directly with x" this means that:
[tex]y=k\times x[/tex]
where k is a number we need to find out (called the constant of proportionality if you care about that).
We can figure out what k is because they tell us when y= -252, x=84. Substituting those values into our equation we get:
[tex]-252 = k \times 84[/tex]
and therefore:
[tex]k=-3[/tex].
So our equation or formula between y and x is:
[tex]y= -3x[/tex].
So when x = 74, then:
[tex]y=-3 \times 74 = -222[/tex]
