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3 years ago

What is the answer to all these questions? I need help asap

Mathematics

2 answers:

iren [92.7K]3 years ago

8 0

Answer:

1: slope

2: y-intercept

1a: slope= 3

1b: 2

y=3x+2

2a: slope= -10

2b: 60

y= -10x+60

Step-by-step explanation:

Marysya12 [62]3 years ago

4 0

Answer:

1) Slope= 2, y-intercept=4, equation: y=2x+4

2.Slope= -10 , y-intercept= 60 , equation: y=-10x+60

Step-by-step explanation:

Slope formula: $\frac{y_{2}-y_1 }{x_2-x_1}$

1. Plug in two sets of cordinates into the equation

(0,2) (2,8)

2. Solve, slope =2

3. Plug in one pair into the point slope formula

Point slope formula: $y-y_1=slope(x-x_1)$

4. y-8=2(x-2)

5.y-8=2x-4

6. y=2x+4

Do the same for the other equation

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Ulleksa [173]

with the pythagorean theorem

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using the formula of the quadratic equation

$\begin{gathered} x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ x1=\frac{-6+\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=-1 \\ x2=\frac{-6-\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=7 \end{gathered}$

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length of the shorter leg is: 7ft

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1 year ago

How do you prove theorems behind two parallel lines cut by a transversal?

LenaWriter [7]

The way to do it can be explained like this:
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Then the pairs of alternate interior angles are:
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Answer:

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Step-by-step explanation:

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