Write an equation of the line that passes through the points of (-3,9) and (4,-5) in slope intercept form

Slope intercept form:

y = -2x + 3

Step-by-step explanation:

(-3,9) and (4,-5)

Slope = (9 + 5)/(-3 - 4) = 14/-7 = -2

Equation in point slope form:

y - 9 = - 2(x + 3)

y - 9 = -2x - 6

y = -2x + 3    <slope intercept form

The correct option is B. decreased by 4.5 percent.

Step-by-step explanation:

Consider the provided information.

The typical family on the Planet Econ consumes 10 pizzas, 7 pairs of jeans, and 20 gallons of milk. In 2016,

In 2016, pizzas cost $10 each, jeans cost $40 per pair, and milk cost $3 per gallon.

Cost of living in 2016 = 10×$10+7×$40+20×$3

                                   = $100+$280+$60

                                   = $440

In 2017, the price of pizzas went down to $8 each, while the prices of jeans and milk remained the same.

Cost of living in 2017 = 10×$8+7×$40+20×$3

                                   = $80+$280+$60

                                   = $420

Change in cost of living is:

Here minus sign represents decreased.

Hence the cost of living is decreased by 4.5 percent.

Therefore, the correct option is B. decreased by 4.5 percent.