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3 years ago

Find a solution to the following system of linear equations by using either 1 point

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

6 0

(1.636, 14.545) simply plug in the y=4x+8 into the second equation and then solve

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Write the equation of the line with x-intercept -2 and y-intercept -1 in slope-intercept form

eduard

The x-intercept of -2 gives us an idea that point (-2,0) if found along the line. The y-intercept of -1, tells us that point (0,-1), this also tells us that b = -1.

Now that we have two points, we can solve for slope m

$\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ \text{Given two points} \\ (-2,0)\rightarrow(x_1,y_1) \\ (0,-1)\rightarrow(x_2,y_2) \\ \\ \text{Substitute} \\ m=\frac{y_2-y_1}{x_2-x_1} \\ m=\frac{-1-0}{0-(-2)} \\ m=-\frac{1}{2} \end{gathered}$

Now that we have both m and b. Substitute these values to the slope intercept form

$\begin{gathered} \text{Slope intercept form is} \\ y=mx+b \\ \text{where} \\ m\text{ is the slope} \\ b\text{ is the y-intercept} \\ \\ \text{Substitute the values from before and we get} \\ y=-\frac{1}{2}x-1 \end{gathered}$

5 0

11 months ago

Please help! I'll give anyone who helps 10 points.

Lesechka [4]

Answer:

the bottom one b and c

Step-by-step explanation:

it goes at a steady rate of 2b=c

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2 years ago

Dan's gas tank is 3/8

Neporo4naja [7]

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16 gallons

Step-by-step explanation:

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2 years ago

A pack of four CFL bulbs cost $5.12 what is the cost for CFL bulb HELPPP MEHHH BTW ADD ME ON FORTNITE poineytail360

OverLord2011 [107]

$1.28

If you divide $5.12 by 4 you get 1.28

so it's 1.28 per

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2 years ago

A TV that usually sells for $187.57 is on sale for 15% off. If sales tax on the TV is 7%, what is the price of the TV, including

Anit [1.1K]

Answer:

I hope this helpfull.

Step-by-step explanation:

But if it not,im so sorry

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