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expeople1 [14]
3 years ago
12

Does the point 7, 1 lie on the line defined by the equation y= 2x+5

Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0
Y = 2x + 5
(7,1)...x = 7 and y = 1
now we sub
1 = 2(7) + 5
1 = 14 + 5
1 = 19...incorrect....NO (7,1)  is not a solution

***now if there was a typo and ur set of points are (1,7)
y = 2x + 5
7 = 2(1) + 5
7 = 2 + 5
7 = 7...correct....so (1,7) is a solution

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Simplify<br> 3x^2+ 13x – 10<br> 9x^2 - 4
svetlana [45]

Answer:

                                The top one is (3x−2)(x+5)

the bottom one is    (3x−2)(3x+2)

Step-by-step explanation:

4 0
2 years ago
Algebra
vladimir2022 [97]
(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1

-4x - 6y = -24
4x - 3y = 6

You can cancel out the x values by adding the two equations together. 
(-4x + 4x) + (-6y - 3y) = (-24 + 6)
-9y = -18
y = 2

Solve for x now...
4x - 3(2) = 6
4x - 6 = 6
4x = 12
x = 3

Check... (x = 3, y = 2)
2(3) + 3(2) = 12 
6 + 6 = 12
12 = 12 <- this works! 

4(3) - 3(2) = 6
12 - 6 = 6
6 = 6 <- this works!
5 0
3 years ago
Read 2 more answers
What is 6y−12=−3x in standard form?
aalyn [17]
3x + 6y = 12.
In standard form.

5 0
3 years ago
Write an equation in slope intercept form for a line that passes through the origin with a slope of 3/2
mrs_skeptik [129]

Answer: y = (3/2)x

m = 3/2 is the slope

(x1,y1) = (0,0) is the point we want the line to go through, aka the origin

Use point slope form, plug in the given values, and convert to slope intercept form

y - y1 = m(x - x1) .... point slope form

y - 0 = (3/2)*(x - 0) .... substitution

y = (3/2)x .... final answer in slope intercept form

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3 years ago
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arsen [322]

Answer:

E

Step-by-step explanation:

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3 years ago
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