1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldi70 [24.7K]
3 years ago
6

Work out the equation of a line which has a gradient of -2 and passes through the point (1 ,7)​

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
7 0

Answer:

Y=-2x+9

Step-by-step explanation:

The first thing is to know the formula which is Y÷x

Then... The line (1,7)use the coordinates Y and X so it will be as follows... Label 1 and 7 as x, y

So it will be Y-7÷X-1 = the gradient which is - 2

So multiply both sides by X-1

So it will be Y-7=2x+2 again be careful because a negative number multiplied by another negative will give you a positive sign

Remember Y-7....... Take 7 to the other side so it will be a positive...... Then work out the integers

You might be interested in
BRAINLIEST FOR WHOEVER SOVLES FIRST AND GIVES A GOOD REASON.
natulia [17]
X=60
That’s the answer

What I did to get it
(3x-60)=120
+60. +60
3x =180
————. = 60
3

X=60
6 0
3 years ago
What does x equals in 2x + 16= -26
vredina [299]

Answer:

-21

Step-by-step explanation:

-21 x 2 =  -42                   -42+16= -26

7 0
3 years ago
What does the point (2, 120) represent on the graph?
Nonamiya [84]

from the given graph the point (2,120) shows that the heartbeat of and active bear is 120 in 2 minutes.

8 0
3 years ago
Read 2 more answers
As an estimation we are told 5 miles is 8 km. <br> Convert 27.4 miles to km.
kicyunya [14]

Answer:

43.8 km to the nearest tenth.

Step-by-step explanation:

5 miles is 8 km

so 1 mile = 8/5 km

and 27.4 miles = 27.4 * 8/5

= 43.84 km

7 0
3 years ago
Read 2 more answers
Please help me with these?? Work needs to be shown.
Y_Kistochka [10]

Answer:

Step-by-step explanation:

7) Area = 615.75 sq. km

πr² = 615.75

3.14*r² = 615.75

r² = 615.75/3.14 = 196

r = √196

r = 14 km

8) circumference = 15.71 yards

πd = 15.71

3.14*d = 15.71

d = 15.71/3.14  = 5 yards

9)Area = 415.48 sq.inches

πr² = 415.48

3.14*r² = 415.48

r² = 415.48/3.14 =  132.31

r = √132.31

r = 11.5 inches

diameter = 11.5*2 = 23 inches

8 0
3 years ago
Other questions:
  • Andy has 31 coins made up of quarters and half dollars, and their total value is $11.00. How many quarters does he have?
    6·1 answer
  • Which number is the best approximation for 47√− 23√ ?
    14·2 answers
  • Find all the factors of 28 the first 6
    6·2 answers
  • 41.2 x 1.5. Then explain where the decimal point should go and why
    14·2 answers
  • Suppose you start at the orgion, move along the x-axis distance of 4 units in the positive direction, and then move downword a d
    13·1 answer
  • 2x2= please get it right
    11·2 answers
  • Ahh help, I need this question due in 10 mins-
    13·1 answer
  • Andrew has 212 coins, all of
    5·1 answer
  • A system of inequality, where x is the rate of a spaceship in a video game and y is where the ship travels on the screen in 3.5
    8·2 answers
  • Which is not a likely area of application of statistics in business?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!