What are the possible solutions to a linear equation and how could you determine the number of

Mathematics

1 answer:

Maksim231197 [3]3 years ago

4 0

Answer:

A system of two equations can be classified as follows: If the slopes are the same but the y-intercepts are different, the system has no solution. If the slopes are different, the system has one solution. If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.

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Which of the following relations is a function?

Mila [183]

Answer:

Option A

Step-by-step explanation:

A does not have an x that has 2 or more outputs

3 0

3 years ago

Read 2 more answers

Solve the following system of equations:

SIZIF [17.4K]

$xy = 4 \\ 2y = x - 6 \\ \\ xy = 4 \\ x = 6 + 2y$

$(6 + 2y)y = - 4 \\ {y}^{2} + 3y + 2 = 0 \\ d = {3}^{2} - 4 \times 2 = 9 - 8 = 1 = {1}^{2}$

$y = \dfrac{ - 3 + 1}{2} = - 1 \\ \\ y = \dfrac{ - 3 - 1}{2} = - 2$

$- 2x = - 4 \\ x = 2 \\ \\ - x = - 4 \\ x = 4$

Answer: B) (2; -2), (4; -1)

4 0

3 years ago

60 points on the line! If you can do this paper! Only 2 questions!

Stolb23 [73]

So y=mx+b
the 'm' part means the slope which is found by 'rise/run'
a. y=2x+3 or y=2x+3
b. y=-1x+6
c. i'm not sure what this part means
d. this means 'what values will work for x and y in both equations at once so
y=-x+6 and y=2x+3
y=-x+6
add x to both sides
x+y=6
subtitute 'y=2x+3' for y in x+y=6
x+(2x+3)=6
collect like terms
3x+3=6
subtract 3 from both sides
3x=3
divide both sides by 3
x=1
sibtitue into x+y=6
1+y=6
subtract 1 from both sides
y=5

(1,5) is the solution (x,y)

Question 2
so amount of peanuts (x) =60%
ammount of almonds (y)=40%
y=2(1/3x) or y=2/3x
so there is a mixture that is8/10 almonds
for
a. i'm not sure about this one
b. so 60% of 5 pounds=3 pounds
40% of 5 pounds=2pounds
we need to find out how many pounds, times 8/10, = 2pounds

she will need 2.5 pounds of the pure peanuts and 2.5 pounds of the almond-peanut mixture

3 0

3 years ago

Why isn't D the answer? Isn't it also positive and concave up?

ArbitrLikvidat [17]

Step-by-step explanation:

At d, f'(x) is increasing (concave up), but it is not positive. The tangent line at that point has a negative slope.

7 0

4 years ago

15y = 45x + 60 What is the slope 6y=12x + 36 What the slope

Helga [31]

Answer:

12 that's what I think the answer is