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3 years ago

Write an equation of a line parallel to the line y=2x+7 and passing through the point (4,2)

Mathematics

2 answers:

Arlecino [84]3 years ago

8 0

Y = 2x + 7
y = 2(4) + 7
y = 8 + 7
y = 15

y = 2x + 7
2 = 2x + 7
-7 -7
-5 = 2x
2 2
-2.5 = x

(x y) = (-2.5, 15)

trasher [3.6K]3 years ago

4 0

Y=mx+b
lines are parallels so m=2

y=2x+b
line passing through the point (4,2), so x=4 y=2
put these value in equation
2=2*4+b
2=8+b
b=2-8
b=-6
y=2x-6
Answer: y=2x-6

(verification on the picture)

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Answer:

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Step-by-step explanation:

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To find the inverse of a function, we will flip the variables and solve for y. So:

$x=2y^2+2$

Solve for y. Subtract two from both sides:

$x-2=2y^2$

Divide both sides by two:

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3 years ago

You are creating bracelets and then selling them to your friends at a 85% markup rate. If it costs you $1.80 to create the brace

posledela

Answer:

you will add $1.53 to every bracelet you make

Step-by-step explanation:

figure out what 85 percent of 1.80 is and then add that to 1.80 for the total price

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3 years ago

In the diagram shown overline AD and intersect at point E. overline AB and overline CD are parallel . Given the segment length s

Harrizon [31]

Answer:

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Step-by-step explanation:

Since AB and CD are parallel, ∠D is congruent to ∠A and ∠C is congruent to ∠B. Therefore the two triangles are similar by the AA postulate. Now, the corresponding sides are in proportion

Since AE ↔ DE and AB ↔ CD

So, AE/CD = AB/CD

AE/5 = 9/4

AE = 9(5)/4

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