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4 years ago

What number goes into 66 and 19

Mathematics

2 answers:

polet [3.4K]4 years ago

8 0

Many numbers go into 66 and 19. Please be more specific.

zhannawk [14.2K]4 years ago

4 0

Well, 19 doesn't go into 66, and 19 is a prime number, so it would have to be 1

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2 years ago

With slope –1/4, passing through (-4, -1)

True [87]

Answer:

$y = -\frac{1}{4}x - 2$

Step-by-step explanation:

i'm not sure if you're trying to find the equation of the line ?? but i'll assume that's the case and find the slope-intercept form equation of the line.

slope intercept form is $y = mx + b$ , where $m$ is the slope and $b$ is the y-intercept. since the slope is already identified, you can plug in $-\frac{1}{4}$ for $m$ .

$y = mx + b$ ⇒ $y = -\frac{1}{4}x+b$

plug in the $x$ and $y$ values from the coordinate pair that passes through the line, which is (-4, -1). you can start with either $x$ or $y$ , but i'm going to start with $x$ .

first, plug in $-4$ for $x$ .

$y = -\frac{1}{4}x+b$ ⇒ $y = -\frac{1}{4}(-4)+b$

now plug in $-1$ for $y$ .

$y = -\frac{1}{4}(-4)+b$ ⇒ $-1 = -\frac{1}{4}(-4)+b$

after plugging in all of the given values, the equation is now $-1 = -\frac{1}{4}(-4)+b$ , in which you need to solve for $b$ .

now it's time to solve! begin by multiplying $-\frac{1}{4}(-4)$ in order to simplify the right side of the equation.

$-\frac{1}{4}(-4) = 1$

you now have $-1 = 1 + b$ . subtract 1 from both sides of the equation. on the right side, it cancels itself out, leaving you with $b$ . on the left side of the equation, you now have $-1 - 1$ , which equals $-2$ .

therefore $-2 = b$ , or $b = -2$ .

now that you've solved for your $b$ value, plug it into your initial slope-intercept form equation!

$y = -\frac{1}{4}x + b$ ⇒ $y = -\frac{1}{4}x - 2$

if you want to check to make sure that the values are correct, plug (-4, -1) into your completed slope-intercept form equation. as you did in the beginning, plug in $-4$ for $x$ and $-1$ for $y$ .