This is confusing, I need some help on it

Mathematics

2 answers:

Margaret [11]4 years ago

4 0

Answer:

The 1st one.

Step-by-step explanation:

In order to find the equation, they're is 2 ways of doing. Plugging in or using Y-Y1=M(X-X1). For plugging in, replace the x with 1 x value and plug in y for the corresponding x value. Or you can plug in all the x and y values into the equation shown and put the number on the left to the right and you'll get your equation immediately. Good luck on the Quizziz!

NeX [460]4 years ago

3 0

Answer:

y=x+5

Step-by-step explanation:

Looking at the answer choices, at first glance you see x=0 and y=5, this mean the y-intercept is 5. And in the equation y=mx+b, positive 5 will go into b.

The only answer with +5 as y-intercept is y=x+5

Now what if there are multiple +5 for y-intercept?

If there is multiple +5, you will also need to find the slope, you can find the slope by using

y2-y1/x2-x1

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How to slove this problem?

Feliz [49]

So, since the polygons are similar, they will share a scale factor.

The dilation is a reduction.

SF= preimage/image

SF=48/40

SF= 1.2

To find the value of x, multiply 20 by 1.2, so:

20(1.2)=24

Thus, x = 24

Now, to check if the sides are proportional (this will determine if the polygons are, in fact, similar.)

24/20=1.2
48/40=1.2

BTW, the missing side measure for the image is 40 since 48 is its corresponding side, and 48/1.2 (SF) is 40.

Hence, we have 48/40= 1.2

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3 0

4 years ago

Read 2 more answers

If a car travels 85 kilometers in one and 1/6 hours. At this rate, how far will it travel in four 1/5 hours

mafiozo [28]

Answer:

306 km

Step-by-step explanation:

put both of them to equal in ratio form so now

85 / (7/6) = x / (21/5)

85 * (21/5) = 7/6x

357 = 7/6x