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3 years ago

How do i evaluate 3X + y for X = 2 and y = -1

2 answers:

8 0

When you see a coefficient (the number next to the letter) next to a variable (the letter), you multiply. So 3*2=6 So you have: 6+y, or since y=-1, 6+(-)1= 5

Kazeer [188]3 years ago

4 0

3(2) + -1
6-1=5

6-1 is from the 1 being a negative already.

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The given line passes through the points (-4,-3) and (4,

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

first we gotta find the slope of the first line

(-4,-3),(4,1)

slope = (y2 - y1) / (x2 - x1) = (1- (-3) / (4 - (-4) = (1 + 3) / (4 + 4) = 4/8 = 1/2

so the slope is 1/2.....so we are looking for a line that is perpendicular....perpendicular lines have negative reciprocal slopes...all that means is flip the slope and change the sign....so the slope we need is :

1/2....flip it....2/1.....change the sign....-2.....we need a -2 slope

y - y1 = m(x - x1)

slope = -2

(-4,3)...x1 = -4 and y1 = 3

now sub

y - 3 = -2(x - (-4) =

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3 years ago

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valkas [14]

Answer:

$477

Step-by-step explanation:

63 hours x $6 = $378

9 hours x $11 = $99

378+99= $477

3 0

3 years ago

1)Find the area of a parallelogram with base b and height h

Oksanka [162]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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3 years ago

What is the solution of the equation. find the value of y when x equals -10. 2x - 9y = -38

cestrela7 [59]

Answer:

y =2

Step-by-step explanation:

Substitute -10 for x:

2(-10)-9y = -38

-20-9y = -38

-9y = -18

9y = 18

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4 0

2 years ago