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andriy [413]
2 years ago
6

When solving a system of equations, how do you determine which method to use?

Mathematics
1 answer:
bazaltina [42]2 years ago
5 0
Substitution is best to use one one or both equations is already solved for one of the variables. Elimitation can be use if all variables have a coefficient other than 1.
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For the quadratic y = x^2 -7x +12, when x = -3, what is the y-value?
Tatiana [17]

Answer:

y = 0

Step-by-step explanation:

subsitute x = -3 into y = x^2 - 7x + 12

y = -3^2 - 7 x  -3 + 12

  = 9 - 21 + 12

  =  0

7 0
3 years ago
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What are the intercepts of the equation <br> 2x+3/2y+3z=6
Ne4ueva [31]
X-intercept => 2x = 6 => x = 3
x-intercept is 3.

y-intercept => 3/2y = 6 => y = 4
y-intercept is 4.

z-intercept => 3z = 6 => z = 2
z-intercept is 2.
3 0
2 years ago
What Is the y-intercept of the two points that cross through (8,1) and (-3,1)?
kramer

Answer:

(0,1)

Step-by-step explanation:

The line made by these two points is perfectly horizontal since the value of y in both points is the same. When the y value is the same in all given points, that number is also the y-intercept and the line doesn't cross the x axis.

(The opposite applies as well: If the x value is the same in all given points, that number is also the x-intercept and the line doesn't cross the y axis. In that case, that means the line is vertical)

7 0
3 years ago
Which statement below compares the decimals correctly? (3 points) A 0.63 &lt; 0.48 B 0.48 = 0.63 C 0.63 &gt; 0.48 D 0.48 &gt; 0.
Bad White [126]

Answer:

(c)\ 0.63 > 0.48

Step-by-step explanation:

Given

0.63 and 0.48

Required

Which compares them correctly

(a)\ 0.63 < 0.48

This is incorrect because 0.63 is greater

(b)\ 0.48 = 0.63

This is also incorrect because 0.63 is greater

(c)\ 0.63 > 0.48

This is also correct because 0.63 is greater

(d)\ 0.48 > 0.63

This is also incorrect because 0.63 is greater

7 0
3 years ago
(MIDDLE SCHOOL MATH) what is the answer for b)?
lesya692 [45]

Answer:

because it easily displays all of the info

7 0
3 years ago
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