Question

Answer too a and b plz don't understand at all

Answer 1

Greetings!

Arrange the equation in slope y-intercept form to calculate the rate of change (hourly rate):
$y=mx+b$

Isolate for y:
$45x-3y=-30$

Add -45x to both sides:
$(45x-3y)+(-45x)=(-30)+(-45x)$

$-3y=-45x-30$

Divide both sides by -3:
$\frac{-3y}{-3}= \frac{-45x-30}{-3}$

The Equation Is:
$\boxed{y=15x+10}$

The Hourly Rate (Represented by the slope) is: $15
The Signing Bonus (Represented by the y-intercept) is: $10

The Graph for this Equation is attached below:

I hope this helped! 
-Benjamin