alex145 alex145

04-07-2016
Mathematics

contestada

what is the equation of a line that passes through (7,8) and has a slope of -3

Respuesta :

04-07-2016

y = mx + b

m = slope = -3

y = -3x + b

We need to find b, so plug 7 for x and 8 for y

8 = -3*7 + b

8 = -21 + b

Add 21

29 = b

So the equation is y = -3x + 29.

Answer Link

Otras preguntas

Why are leaves green?

How does the atmosphere affect radiation

The sales tax in Bill's state is 6%. Bill bought a Scion having a sales tax of $820. What was the cost of the car? Round to nearest dollar.

What was the major reason for Napoleon's defeat during his invasion of Russia in 1812? an advanced Russian military superior Russian troops a natural disaster t

Divide the following polynomial using synthetic division, then place the answer in the proper location on the grid. Write answer in descending powers of x. (x^3

Mass starvation in Ireland in the 1840s led directly to the (1) formation of communes (2) granting of independence (3) migration of people overseas (4) usag

What is the blank? Blank+(-6)+(-3)=-17

Two thirds Of a number Is 3 1/2 ( three And a half) more than three eighths Of The number. Find The number.

Dad is 7 times as old as his son. 10 years later, he will be three times as old as his son.find their ages?

A box of powdered laundry detergent contains 5.2 ounces of detergent. It takes 0.7 ounce of detergent to clean a load of laundry. How many full loads can by cle