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2 years ago

Need help please answer ASAP!

Mathematics

1 answer:

pantera1 [17]2 years ago

5 0

Answer:

hope this will help you

Step-by-step explanation:

40. 2
42. 1
43. 4
44. 1

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Write the equation of the line passing through the points (-4,-1) and (2,8)

klio [65]

<h3>Explanation:</h3>

Calculate the slope with two given coordinate points by using rise over run.

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Let these points

$\begin{cases}(x_1, y_1) = ( - 4, - 1) \\ (x_2, y_2) = ( 2, 8) \end{cases}$

$m = \frac{8 - ( - 1)}{2 - ( - 4)} \\ m = \frac{8 + 1}{2 + 4} \Longrightarrow \frac{9}{6} \Longrightarrow \frac{3}{2} \\ m = \frac{3}{2}$

Slope-Intercept

$y = mx + b \\ m = slope \\ b = y - intercept$

Substitute the value of m in the equation.

$y = \frac{3}{2} x + b$

Substitute any coordinate points that are given or part of the graph in the equation.

$(x_, y) = ( - 4, - 1)$

$- 1 = \frac{3}{2} ( - 4) + b$

Solve the equation for b-term.

$- 1 = \frac{3}{ \cancel{2}} ( \cancel{ - 4}) + b\\ - 1 = 3( - 2) + b \\ - 1 = - 6 + b \\ - 1 + 6 = b \\ 5 = b$

Rewrite the equation by substituting the value of b in the equation.

$y = \frac{3}{2} x + 5$

<h3>Answer</h3>

$\large \boxed{y = \frac{3}{2} x + 5}$

If you have any questions related to the answer, feel free to ask via comment.

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3 years ago

Solve with elimination

Fittoniya [83]

I'm pretty sure this is correct

4 0

3 years ago

Does anyone know how to solve this??

katen-ka-za [31]

Answer:

$y = g(x) = 1 + \sqrt{x}$

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2 years ago

76 m = cm?????? Pls help I cant figure it out!!!

soldier1979 [14.2K]

Answer:

7600

Step-by-step explanation:

Because it is just x 100

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3 years ago

Is the number given a solution to the equation? c = 2c - 4; 8

Sveta_85 [38]

No i dint think it is 2×8-4=12 and 8 is not equal to 12 :)

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3 years ago