Question

The equation of a function is y=2x-3. Find
a) the value of y when x= 4
b) the value of x when y= -5

Answer 1

Answer:

a)5

b)-1

Step-by-step explanation:

a) y=2x-3

as x value is 4

y=2×4-3

y=5

b)y=2x-3

as value of y= -5

-5=2x-3

as -3 goes to lhs it becomes +3

so, -2=2x

-2/2=x

x=-1