HELP ASAP PLEASE! I need to write an equation of the line in slope-intercept form.

Mathematics

1 answer:

Travka [436]3 years ago

3 0

Step-by-step explanation:

step 1. slope intercept form: y = mx + b

step 2. m (slope) = (4 - 5)/(3 - 0) = -1/3.

step 3. Pick one of the points: (0, 5).

step 4. b is 5, the y intercept.

step 5. y = (-1/3)x + 5.

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35 points!! Only comment if you really know the answer please.

hodyreva [135]

Y = 3x - 1 ---- (1)
x - y = -9 ---- (2)

From Equation 2:
x - y = - 9
x + 9 = y
y = x + 9 --- (2a)

(1) - (2a):
0 = 3x - x - 1 - 9
0 = 2x - 10
2x - 10 = 0
2x = 10
x = 5 ---- sub into (1)

y = 3(5) - 1
y = 15 - 1
y = 14

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4 years ago

X Combine like terms: b + 4b2 - 8 + 3b - 2b2

emmainna [20.7K]

Answer:

$2b^{2}$ + 4b - 8

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3 years ago

Given that f(x) =x^2-3/3 a) Find f(3) b) Find f'(x) c) Find f'(11)

Ber [7]

A) F(3)=3^2-3:3= 9-3:3=9-1=8
B) ?
C) F(11)= 11^2-3:3=121-1= 120

I think this

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3 years ago

How would you determine which x-values to use when creating a table of values to graph a parabola?

blagie [28]

To determine which values of x we would use for creating a graph of a parabola, we need to know where the line of symmetry, or the axis of symmetry is. For that we can use the equation:

y=(x-h)+k, where we know h and k.

From this equation we can see that the line of symmetry is passing trough x=h.

And now we can determine which values do we need to add to h and to subtract from h to get values of x to create the table of values to plot a parabola.

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3 years ago

To travel 80 miles, it takes Sue, riding a moped, 2 hours less time than it takes Doreen to travel 60 miles riding a bicycle. Su

andriy [413]

Answer:

Time taken by Doreen is 6 hours and speed is 10 miles per hour.

Time taken by Sue is 4 hours and speed is 20 miles per hour.

Step-by-step explanation:

Let the speed of Doreen be x

According to the question speed of Sue is = x+10

time taken By Sue to cover 80 miles = $\frac{80}{x+10}$