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2 years ago

PLEASE PLEAE PLEASE HELP

Mathematics

1 answer:

scoundrel [369]2 years ago

7 0

She bought 4 coffees! :)

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What equation is graphed in this figure?

topjm [15]

Answer:

The third equation: $y+2=-3(x-1)$

Step-by-step explanation:

The two points on the line are $(-1,4)$ and $(1,-2)$ .

Slope of the line passing through two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$m=(y_{2} -y_{1})/ (x_{2} -x_{1})$

Here, $(x_{1},y_{1})$ and $(x_{2},y_{2})$ are $(-1,4)$ and $(1,-2)$ .

Therefore, slope is equal to, $m=(-2-4 )/ (1-(-1)$

$m=-6/2$

$m=-3$

Now, equation of a straight line with slope m and points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

$y-y_{1}=m(x-x_{1})\\y-y_{2}=m(x-x_{2})$

Now, if we use the 2nd form, then $x_{2}=1,y_{2}=-2$ .

So, the equation is given as :

$y-(-2)=-3(x-1)\\y+2=-3(x-1)$

8 0

3 years ago

X^2+20x+c find the value of c that makes a perfect square trinomial

ollegr [7]

Answer:

This means c=100. The factored form is $(x+10)^2$ .

Step-by-step explanation:

A perfect square is a trinomial that factors into the form $(x+a)^2$ . To find the value of C to finish the perfect square divide 20 by 2 and square it.

20/2 = 10

10*10=100

This means c=100. The factored form is $(x+10)^2$ .

3 0

3 years ago

Given f (x) = 3x +4, find f (2). A 6 B) 7 C 10 D) 14.

Tom [10]

Answer:

F(2)= 10 or C

Step-by-step explanation:

You just need to plug the answers in.

F(x)=3x+4

f(2)=3(2)+4

f(2)=6+4

f(2)= 10

7 0

3 years ago

Cos (A) + Tan (A) Sin (A), Sec (A)=

irakobra [83]

Answer: you need more info

Step-by-step explanation:

3 0

3 years ago

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The formula for the area of a triangle is A = one-half b h. Which is the equivalent equation solved for h? StartFraction 2 A Ove

tensa zangetsu [6.8K]

Answer:

StartFraction 2 A Over b EndFraction = h

Step-by-step explanation:

$A = \frac{1}{2} \times b \times h \\ \\ 2A = b \times h \\ \\ \huge \red{ \boxed{h = \frac{2A}{b}}} \\$

5 0

3 years ago

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