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ra1l [238]
3 years ago
15

How do we do with this formula? Help me with A pls​

Mathematics
2 answers:
Masteriza [31]3 years ago
8 0

Answer:

find all the equation placing each one

Step-by-step explanation:

for eg in no a

gradient is 2

point is (4,1)

so the point (4,1) is (x1,y1)

using formula

y-y1=m(x-x1)

y-1=2(x-4)

y-1=2x-8

therefore 2x-y-7=0 is the required equation

now do all of the above like this

Ugo [173]3 years ago
3 0

Gradient is the slope, which is the letter m in the equation.

The point is written as (x1, y1) so replace x1 and y1 in the equation with the numbers in the given point.

A would be y - 1= 2(x-4)

B: y +5 = 5(x-2)

C: y-1= -3(x+1)

D: y -6 = 1/2(x-1)

E: y +1/4 = -2(x-3:4)

F: y+7 = -1/5(x+ 3)

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3 years ago
Can anyone help me please
Sauron [17]

Range of values of x is 25°<x<27°.

<u>Step-by-step explanation:</u>

An angle is formed when two rays, a line with one endpoint, meet at one point called a vertex.Alternate interior angles are formed when a transversal passes through two lines. The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles. The Alternate Interior Angles theorem states, if two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent.

In above question, sides are equal and so alternate interior angles are equal i.e. 2x + 10° = 62° ⇒ 2x = 52° ⇒ x =26°

∴ range of values of x is 25°<x<27°

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