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3 years ago

1 For each line

Mathematics

1 answer:

Elena-2011 [213]3 years ago

5 0

Step-by-step explanation:

I'll do line A for you and you can use the formulas to solve lines B and C yourself, since its good for you to practice doing these questions yourself

The gradient, m, is calculated using m = (y2-y1)/(x2-x1) where x1,x2,y1 and y2 can be any ordered pairs on the line. I'm going to use (4,0) and (7,3) as the 2 points.

m = (3-0)/(7-4) = 3/3 = 1

The y-intercept is where the line intersects with the x-axis. In this case (0,-4)

The equation of a linear line is y=mx+b (or c depending on which country you are from)

y = 1x-4

y=x-4

Now try the other 2 lines yourself!

If this answer has helped you, considered making this the brainliest answer!

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Graph the equation (x - 3)^2 + (y - 2)^2 = 25 and y = 6.

Dmitriy789 [7]

Answer:

x=6, x=0

Step-by-step explanation:

$(x - 3) ^{2}$ + $(y - 2) ^{2}$ = 25

$(x - 3) ^{2}$ + $(6 - 2) ^{2}$ = 25

x=6, x=0

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3 years ago

Drag the simplified value into the box to match each expression.

Mama L [17]

Answer:

4^0 + 2 x 3 - 2 = 5

2^2 + 10 - 3 x 2 = 8

9 + 3^2 - 1 x 4 = 14

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3 years ago

What is the slope and y intercept of y=-7x+12

MrRissso [65]

Hi there!

So the format of slope-intercept form is:

y= mx+b

m= your slope
x = just a variable
b= your y- intercept

Using those hints, see if you can figure out the answer! :)

Hope this helped!

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DISCLAIMER: I am not a professional tutor or have any professional background in your subject. Please do not copy my work down, as that will only make things harder for you in the long run. Take the time to really understand this, and it'll make future problems easier. I am human, and may make mistakes, despite my best efforts. Again, I possess no professional background in your subject, so anything you do with my help will be your responsibility. Thank you for reading this, and have a wonderful day/night!

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If you're super stuck, your answer would be:

Slope: -7
Y- intercept: 12

3 0

3 years ago

HELPPPPPPPPP Write the quadratic expression to represent the pattern to the right

Lerok [7]

Answer:

n^2 + 2n - 1

Step-by-step explanation:

Figure 1

2*2 - 2

Figure 2

3*3 - 2

Figure 3

4*4 - 2

Equation for nth term

(n + 1)^2 - 2 =
n^2 + 2n + 1 - 2 =
n^2 + 2n - 1

4 0

3 years ago

Translate the phrase into an algebraic expression.

Anarel [89]

The given phrase is

6 more than y .

And we have to put this in algebraic form .

For the phrase "more than", we use addition sign and for the phrase "less than", we use subtraction sign .

So for the given phrase " 6 more than y " , the required algebraic expression is

$y+6$

And that's the answer.

8 0

4 years ago