PLEASE HELP ME ASAP

TY :)

Explanation:

The two equations almost look eerily identical. The only difference really is that the second equation has minus signs littered throughout.

So a good (and correct) guess would be to multiply everything in the second equation by -1 to get...

-y = -3x-4

-1*(-y) = -1*(-3x-4)

y = 3x+4

We get exactly the same result as the first equation in the original given system of equations.

Since we have two identical lines, they will intersect infinitely many times.

Therefore, this system has infinitely many solutions

Here's another viewpoint.

Since  y = 3x+4, as shown in the first original equation, we can replace the 'y' in the second equation with 3x+4 and solve for x

-y = -3x-4

-1y = -3x-4

-1(3x+4) = -3x-4

-3x-4 = -3x-4

At this point, we can see the same thing is on both sides. That equation will ultimately simplify to 0 = 0 when we add 3x to both sides, and when we add 4 to both sides.

Getting 0 = 0 as a final result means there are infinitely many solutions

Side note: The solutions are of the form (x,y) = (x,3x+4)

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

c. 1,233 miles