What is the point-slope equation of the line with slope -4 that goes through the point (-2, 7)?

Mathematics

1 answer:

almond37 [142]3 years ago

6 0

Answer:

y-7=-4(x+2)

Step-by-step explanation:

y-y1=m(x-x1)

y-7=-4(x-(-2))

y-7=-4(x+2)

You might be interested in

The 90km/h bus runs between the two stations in 2 hours and 20 minutes.

AnnZ [28]

Answer:

1. distance is 210km

2. distance is 163•3km

Step-by-step explanation:

SPEED=DISTANCE÷TIME

90km/h= X ÷ 2 hrs and 20mins

CHANGE 20 MINS INTO HRS

1 hr = 60mins

? = 20mins

20mins * 1hr= 1/3hr

60mins

Speed=distance÷time

90km/h= X ÷ 21/3

Distance= speed * time

X = 90km/h * 21/3hrs

distance is 210km

Speed=distance ÷

70km/h= X ÷ 21/3hrs

Distance=speed * time

X = 70km/h * 21/3hrs

6 0

2 years ago

How do you write 3.5 × 10^3 in standard form?

Nutka1998 [239]

Answer:

$3500$

Step-by-step explanation:

Given the following question:

$3.5\times10^3$

To convert a scientific notation into standard form we first need to keep in mind that the exponent in indeed a positive. Knowing this we know that the decimal point is going to move to the right.

Since the exponent is three, we know that the decimal point is going to move to the right THREE times.

$3.5\times10^3$
$3.5\times10^3=3.5.0.0.$
$3.5.0.0.=3500$
$=3500$

Your answer in standard form is "3500."

Hope this helps.