Question

4. The equation of a function is y = 250 -- 20x. Find the value of x when
(i) y = 150​

Answer 1

Step-by-step explanation:

solution : y = 250-20x

put y= 150 in above equation

150 = 250 - 20x

20x = 250 - 150

20 x = 100

x = 100/20

x = 5

Answer 2

Answer:

given = y=250-20x

y = 150

Step-by-step explanation:

putting value of y = 150

150=250-20x

150-250=-20x

-100 =-20x

-100/-20=x

5=x