Question

Linear:slope = 60, y-intercept = 0

Linear:slope = 10, y-intercept =20

Linear :slope = 4, y-intercept = 0

A linear equation cannot be used

Answer 1

A linear equation cannot be used

Explanation:

If it's a linear, then

`(y_2-y_1)/(x_2-x_1)=constant`

Substitute the values from the table:

`(70-60)/(5-1)=(10)/(4)=2.5\\\\(80-70)/(20-5)=(10)/(15)=(2)/(3)`

`2.5\\eq(2)/(3)`