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Mice21 [21]
2 years ago
15

Find the equation of a line that passes through the point (-1,-4) and has a gradient of 2.

Mathematics
1 answer:
Thepotemich [5.8K]2 years ago
3 0

The equation of a line that passes through the point (-1,-4) and has a gradient of 2 is y = 2x - 2

<h3>How to find equation of a line?</h3>

The equation of a line can be represented as follows:

y = mx + b

where

  • m  = slope or gradient
  • b = y-intercept

Therefore,

m = 2

y  = 2x + b

-4 = 2(-1) + b

-4 + 2 = b

b = - 2

Therefore,

y = 2x - 2

learn more on equation of a line here: brainly.com/question/22019640

#SPJ1

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3 years ago
A person drove from 8 am Tuesday to 5 pm Wednesday. Total drive 396 miles. He have lunch for 30 minutes on Tuesday and sleep ove
777dan777 [17]

Answer: 18mph

Step-by-step explanation:

Given data

total distance driven = 396 miles

time driven = 8 am Tuesday to 5 pm Wednesday

total time driven in hours = 33 hours

lunch break time = 30 min Tuesday  + 30 min Wednesday

= 60 min

= 1 hour

sleep time = 7 pm Tuesday to  5 am Wednesday

= 10 hours

solution:

To find the average speed,

we are given total time driven = 33hrs.

lunch + rest time = 10hrs + 1hr

= 11hrs

total time travelled =drive time - rest + lunch time

= 33 - 11

= 22hrs

therefore;

average speed = distance / time traveled.

average speed = 396 / 22

average speed = 18 mph

6 0
2 years ago
Helpppppppppppppppppppppppppppppppppppp
Oksana_A [137]

Answer:

Step-by-step explanation:

a/7+b

You simply have to use the values provided in the equation given. If a=49 and b=7 you have

49/7+7, since 49/7=7 you have

7+7 which equals

14

8 0
2 years ago
Read 2 more answers
Solve –16t² +144= 0 to find the number of seconds, t, it takes for an object dropped from 144 ft above the ground to hit the gro
Vlad1618 [11]

Answer:

h(t) = -16t2 + 144

h(1) = -16(12) + 144 = 128 ft

h(2) = -16(22) + 144 = 80 ft

h(2) - h(1) = 80 - 128 = -48 ft

It fell 48 ft between t = 1 and t = 2 seconds.

It reaches the ground when h(t) = 0

0 = -16t2 + 144

t = √(144/16) s = 3s

It reaches the ground 3s after being dropped.

Step-by-step explanation:

6 0
2 years ago
In rectangle JKLM, JK is equal to 10 feet and MN is equal to 25 feet, find JL.
Snezhnost [94]

we know that

if JKLM is a rectangle

then

diagonals

MK=JL

so

MK=2*MN------> MK=2*25 ft------> MK=50 ft

JL=MK----> JL=50 ft


therefore


the answer is

JL is 50 ft

7 0
3 years ago
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