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3 years ago

14

Y=2x-5 and goes through the point (1,4)

1 answer:

Ne4ueva [31]3 years ago

6 0

Step-by-step explanation:

plug in 1 and 4 for x and y

(4)=2(1)-5

then do the math

4=2-5

4 does not equal -3 therefore it is not a solution

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Please please help me with this

Olegator [25]

Answer:

Step-by-step explanation:

First find the equations of the lines, then fill in the proper inequality sign. The upper line has a y-intercept of 1 and a slope of 1/2, so the equation, in slope-intercept form is

$y=\frac{1}{2}x+1$

Since the shading is below the line, the inequality sign is less than or equal to. The inequality, then, is

$y\leq \frac{1}{2}x+1$

But the solutions are in standard form, so let's do that:

$-\frac{1}{2}x+y\leq 1$

AND they do not like to lead with negatives, apparently, so let's change the signs and the way the inequality is facing, as well:

$\frac{1}{2}x-y\geq -1$

Let's do the sae with the lower line. The equation, in slope-intercept form is

$y=\frac{3}{2}x-3$ since the slope is 3/2 and the y-intercept is -3. Now, since the shading is above the line, the inequality is greater than or equal to:

$y\geq \frac{3}{2}x-3$

In standard form:

$-\frac{3}{2}x+y\geq -3$ and not leading with a negative gives us

$\frac{3}{2}x-y\leq 3$

Those 2 solutions are in choice B, I do believe.

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4 years ago

Subtract 4x4 + 2x2 +5 from the sum of 2x4 – 4x² – 3 and 3x4 – 3x2 +9.<br>

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Answer:

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Step-by-step explanation:

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Answer:

So Cody increase his savings by 87.5%

Step-by-step explanation:

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Now we plug in our values that we found:

$increase(\%) = \frac{35}{40} \times 100\\ increase(\%) = 87.5\%$

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