1. Simplify the expression below. -5(3x) + x A. -15x B. – 13x C. -14x D. –15 + x

Mathematics

2 answers:

Ulleksa [173]2 years ago

7 0

Answer:

i think it's D or B. i hope this helps I didn't really know what to do

elena-s [515]2 years ago

4 0

C. -14x
Just multiply 3 with -5 and get -14x. And then add a positive x to get -14x

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Write an equation in standard form of the line that passes through the given points:

Dafna1 [17]

Step-by-step explanation:

The standard form for a line is Ax+By=C

First, we need to find the slope, or change in y over change in x. For the first one, this is

$\frac{6-(-2)}{2-2}$ , which is impossible to find as we cannot divide by 0, meaning that this is constant horizontally -- in this case, x=2. Thus, we have 1*x+0*y=2.

For the second one, we can find the slope by getting

$\frac{0-4}{3-(-3)} =\frac{-4}{6 } = \frac{-2}{3}$ . We can then take the point (3,0) (it can be any point on the line) and get our equation to be y-0 = (-2/3) (x-3). Converting this to standard form, we can expand this to get