Tell how to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

We choose the sign of the denominator to be the same as the sign of the numerator.

Step-by-step explanation:

Having an equation of a line of the form: ax + by + c = 0.

Suppose we know the coordinates of the point, then the formula for the distance from a point to a line is given as:

D = |ax1 + by1 + c|/√(a² + b²)

The denominator √(a² + b²) takes either a positive or negative value. This is because the square of a positive or negative value are the same. a² = (-a)²

Now, we choose the sign of the radical in the denominator by considering the sign we have in the numerator. As distance is only reasonable to be positive, if the numerator is negative, we choose the negative sign for the denominator. If the numerator is positive, we choose the positive sign for the denominator.

Step-by-step explanation:

the same as user above lol

correct on EDGE2021

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

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.