Without plotting the function y = 2.7x-7.3, find out if the graph passes through point A (-5; -20, 8)

Instead of the argument x, the value of the abscissa of point A (-5; -20, 8), equal to -5, is substituted into the equation of the given function y = 2.7x – 7.3:

y = 2.7 * (-5) – 7.3;

multiplication is performed:

y = – 13.5 – 7.3;

two negative numbers are summed up:

y = -20.8.

So, the argument of the given function y = 2.7x – 7.3 is -20.8.

Comparison of the values of the function y and the ordinate of point A
By the condition of setting, the ordinate of point A is -20.8.

The computed value of the target function y is -20.8.

The values are equal to each other.

This means that the graph of the function y = 2.7x – 7.3 passes through point A (-5; -20, 8).