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

Answer:

A linear equation cannot be used

Step-by-step explanation:

If it's a linear, then

$\dfrac{y_2-y_1}{x_2-x_1}=constant$

Substitute the values from the table:

$\dfrac{70-60}{5-1}=\dfrac{10}{4}=2.5\\\\\dfrac{80-70}{20-5}=\dfrac{10}{15}=\dfrac{2}{3}$

$2.5\neq\dfrac{2}{3}$