I need help guys please A pair of equations is shown below:
y = x - 11
y = -2x + 19

Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation you will plot on the graph to solve equations.
Part B: What is the solution to the pair of equations?

7x+8y=-18, 4x-9y=-3 solve the system of equations

How do i do this activity, is appreciated

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest