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Misha Larkins [42]
3 years ago
6

What is f(3)? f(x)=(3x^2 +9)/x+1

Mathematics
2 answers:
Aliun [14]3 years ago
4 0

Answer:

Step-by-step explanation:

f(3) = \frac{3*3^2 + 9}{3 + 1} = \frac{36}{4} = 9

tangare [24]3 years ago
4 0

Answer:

f(3)=9

Step-by-step explanation:

f(3) means to substitute x=3,

f(3)=(3(3)^2 +9)/(3+1) =9

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Write the equation of the line passing through points ( -2,-5) and (1,1)
Dennis_Churaev [7]

Answer:

The equation of the line is:

y=2x-1

Step-by-step explanation:

Given the points

  • (-2, -5)
  • (1, 1)

Finding the slope between the points

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-2,\:-5\right),\:\left(x_2,\:y_2\right)=\left(1,\:1\right)

m=\frac{1-\left(-5\right)}{1-\left(-2\right)}

m=2

We know the slope-intercept form of the line equation

y=mx+b

where m is the slope and b is the slope-intercept form

substituting the value m=2 and the point (-2, -5) to find the b-intercept

y=mx+b

-5 = 2(-2) + b

b = -5+4

b = -1

Now, substituting m=2 and b=-1 in the slope-intercept form to get the equation of a line

y=mx+b

y=2x+(-1)

y=2x-1

Thus, the equation of the line is:

y=2x-1

8 0
2 years ago
Viết tập hợp dưới dạng liệt kê <br> A = { x € Z : (x^2 + 5x - 6)(2x-1)=0}
love history [14]

Answer:

Step-by-step explanation:

A={1;-6;1/2}

6 0
3 years ago
Help me pls real quick
crimeas [40]
go to the link the person took and you’ll get the answer i believe.
8 0
3 years ago
A line has a slope of 8 and includes the points (7,y) and (5,-7) no link plz
miskamm [114]

Answer: y = 9

Step-by-step explanation:

an equation of y=8x-47 will let the line pass through the point (5,-7) and the point (7,9)

i used the desmos graphing calculator website to graph it

3 0
3 years ago
Whats 4 + 2x + 7(x + 2) =
Veseljchak [2.6K]

Answer:

The answer is 9x + 18

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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