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3 years ago

Find the y-value given the x-value: y = 2x + 10; x = 4* y = 2x + 10; = 4

Mathematics

1 answer:

prisoha [69]3 years ago

6 0

Answer:

y = 18

Step-by-step explanation:

y = 2(4) + 10

y = 8 + 10

y = 18

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Where is the opposite of −10 located on a number line? A) to the left of 0 B) to the right of 0 C) to the right of 12 D) to the

aalyn [17]

Answer:

B. to the right of 0

Step-by-step explanation:

the opposite of -10 would be 10 and out of all the answer choices the number 10 only fits into B.

6 0

3 years ago

Read 2 more answers

Sonja plays tennis and started a tournament with 43 aces on the season. The graph relates her total season aces with the number

Pani-rosa [81]

<h2>Answer</h2>

$-6x+y=43$

<h2>Explanation</h2>

The first thing we need to do is find the slope of our line. To do it we are using the slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

where

$m$ is the slope of the line

$(x_{1},y_{1})$ are the coordinates of the first point on the line

$(x_{2},y_{2})$ are the coordinates of the second point

From our graph we can get the points (0, 43) and (2, 55), so $x_{1}=0$ , $y_{1}=43$ , $x_{2}=2$ , and $y_{2}=55$ . Let's replace the values in our slope formula:

$m=\frac{55-43}{2}$

$m=\frac{12}{2}$

$m=6$

Now that we have our slope, we can use the point-slope formula:

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

$y-43=6(x-0)$

$y-43=6x$

But remember that the equation of a line in standard form is $Ax+Ay=C$ , so we need to subtract $6x$ and add 43 to both sides of our point slope equation: