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3 years ago

Write the equation of the line shown in the graph in slope intercept form

Mathematics

1 answer:

AnnZ [28]3 years ago

4 0

Answer:

y= 4x +3

Step-by-step explanation:

slope= rise over run

y-intercept = where the line hits the y axis

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Do you know why your friend is wrong

arsen [322]

Answer:

i think so what is aap name

7 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7Ba-3b%7D%7Ba%2B2b%7D%20%3D%20%5Cfrac%7B4%7D%7B3%7D" id="TexFormula1" title="\frac{a-3

choli [55]

Answer:

$a:b = -17:1$

Step-by-step explanation:

Given

$\frac{a-3b}{a+2b} = \frac{4}{3}$

Required

Find a:b

$\frac{a-3b}{a+2b} = \frac{4}{3}$

Cross Multiply

$3(a-3b) = 4(a+2b)$

Open brackets

$3a - 9b = 4a + 8b$

Collect Like Terms

$3a - 4a = 8b+9b$

$-a = 17b$

Divide through by -b

$\frac{-a}{-b} = \frac{17b}{-b}$

$\frac{a}{b} = \frac{17}{-1}$

$\frac{a}{b} = \frac{-17}{1}$

Represent as a ratio

$a:b = -17:1$

5 0

3 years ago

The cost of renting tuxes for the Choral Society's formal is $24 down, plus $89 per tux. Express the cost C as a function of x,

Phantasy [73]

A) The formula would be C = 89x + 24.

b) To find the cost of 2 tuxes, just plug in 2 for x and you get 202.

c) For the 4098th tux, plug in 4098 for x and you get $364,746.

d) The variable cost is the number of tuxes.
The fixed cost is the $24 down. The marginal cost is $89, the amount that it changes for each tux.

4 0

4 years ago

Read 2 more answers

Solve for x <br> Xsquare+ 4x+45=0

I am Lyosha [343]

For this case we must solve the following quadratic equation:

$x ^ 2 + 4x + 45 = 0$

Where:

$a = 1\\b = 4\\c = 45$

The solution will be given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values we have:

$x = \frac {-4 \pm \sqrt {4 ^ 2-4 (1) (45)}} {2 (1)}\\x = \frac {-4 \pm \sqrt {16-180}} {2}\\x = \frac {-4 \pm \sqrt {-164}} {2}$

By definition we have to:

$i ^ 2 = -1$

So:

$x = \frac {-4 \pm \sqrt {164i ^ 2}} {2}\\x = \frac {-4 \pm i \sqrt {164}} {2}\\x = \frac {-4 \pm i \sqrt {2 ^ 2 * 41}} {2}\\x = \frac {-4 \pm2i \sqrt {41}} {2}\\x = -2 \pm i \sqrt {41}$