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3 years ago

Write a linear equation using the points on the graph. y=mx+b

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

y = 2x + 4

Step-by-step explanation:

By using the x and y intercepts, you can come up with your linear equation.

X-I is -2 at point (-2,0)

Y-I is 4 at point (0,4)

therefore the answer is

y = 2x + 4

hope this is right and it helps you :)

Sauron [17]3 years ago

8 0

Y=2x+4 because that’s what the other person said

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The base of a 13 foot ladder is 5 feet away from the wall. How far up the wall does the ladder reach? A)8 feet B)10 feet C)12 fe

Lisa [10]

You are solving for the height. Use the formula:

c² - b² = a² in which c = hypotenuse

(13)² - (5)² = a²

Simplify

169 - 25 = a²

144 = a²

Isolate the a. Root both sides

√144 = √a²

a = √144

a = √(12 x 12)

a = 12

C) 12 feet is your answer

3 0

3 years ago

Read 2 more answers

(6c^2-c+1)-(-4c+2c^2+8c)

Natalka [10]

6c^2 - c + 1 + 4c - 2c^2 - 8c
= 4c^2 - 5c + 1
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3 years ago

50 POINTS!!! In rectangle ABCD, AB = 6 cm, BC = 8 cm, and DE = DF. The area of triangle DEF is one-fourth the area of rectangle

aalyn [17]

Answer:

$EF=4\sqrt{3}$

Step-by-step explanation:

In rectangle ABCD, AB = 6, BC = 8, and DE = DF.

ΔDEF is one-fourth the area of rectangle ABCD.

We want to determine the length of EF.

First, we can find the area of the rectangle. Since the length AB and width BC measures 6 by 8, the area of the rectangle is:

$A_{\text{rect}}=8(6)=48\text{ cm}^2$

The area of the triangle is 1/4 of this. Therefore:

$\displaystyle A_{\text{tri}}=\frac{1}{4}(48)=12\text{ cm}^2$

The area of a triangle is half of its base times its height. The base and height of the triangle is DE and DF. Therefore:

$\displaystyle 12=\frac{1}{2}(DE)(DF)$

Since DE = DF:

$24=DF^2$

Thus:

$DF=\sqrt{24}=\sqrt{4\cdot 6}=2\sqrt{6}=DE$

Since ABCD is a rectangle, ∠D is a right angle. Then by the Pythagorean Theorem:

$(DE)^2+(DF)^2=(EF)^2$

Therefore:

$(2\sqrt6)^2+(2\sqrt6)^2=EF^2$

Square:

$24+24=EF^2$

Add:

$EF^2=48$

And finally, we can take the square root of both sides:

$EF=\sqrt{48}=\sqrt{16\cdot 3}=4\sqrt{3}$

6 0

3 years ago

Read 2 more answers

」 - -whats the rule y=0 x0

SOVA2 [1]

Answer:

the zero property

Step-by-step explanation:

meaning any number multiplied by zero gives zero

8 0

3 years ago

Find the area of the triangle when b=8 and h=14

babunello [35]

Answer:

56 square units

Step-by-step explanation:

The formula for the area of a triangle of base b and height h is:

A = (1/2)(b)(h)

Here, that area is A = (1/2)(8)(14) = 56 square units

4 0

3 years ago