Question

Find the domain of the function j(x)= 3x -5 given the range (-7 -1 0 , 10)

Please help I am super bad at math

Answer 1

see explanation

Explanation:

To find the domain given the range, equate f(x) to each value from the range and solve for x, the domain.

3x - 5 = - 7 ( add 5 to both sides )

3x = - 2 ( divide both sides by 3 )

x = -
`(2)/(3)`

3x - 5 = - 10 ( add 5 to both sides )

3x = - 5 ( divide both sides by 3 )

x = -
`(5)/(3)`

3x - 5 = 10 ( add 5 to both sides )

3x = 15 ( divide both sides by 3 )

x = 5

Domain is { -
`(5)/(3)`, -
`(2)/(3)`, 5 }

Answer 2

Solution is five or three ; y =-5

Explanation:

0=3x-5

y=-5

3 times 0 minus 5 and then multiply the numbers

J(0)=0-5 then remove 0