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2 years ago

Plot the x intercepts of the function

Mathematics

1 answer:

Nutka1998 [239]2 years ago

5 0

Answer:

(-1,0), (3,0)

Step-by-step explanation:

(x+1)(x-3) = y

We are trying to find the values for x which make y = 0.

y can only equal 0 when x+1 or x-3 =0

When you solve both x+1 =0, and x-3=0, your solution set is x = -1,3 --> (-1,0), (3,0)

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3x+2y= -19 solve by elimination of addition<br> -3x-5y= 25

tensa zangetsu [6.8K]

Answer:

x=-5, y=-2

Step-by-step explanation:

3x+2y= -19

-3x-5y= 25

Add the two equations together

3x+2y= -19

-3x-5y= 25

------------------

0x -3y = 6

Divide each side by -3

-3y/-3 = 6/-3

y = -2

Now find x

3x+2y = -19

3x +2(-2) =-19

3x-4 = -19

Add 4 to each side

3x -4+4 = -19+4

3x= -15

divide by 3

3x/3 = -15/3

x = -5

8 0

2 years ago

Read 2 more answers

Write this sentence as an equation.<br> Eight less than 1 third a number is -13

Andrews [41]

Answer:

1/3*x - 8= -13

Step-by-step explanation:

4 0

3 years ago

Which property would be useful in proving that the product of two rational numbers is ALWAYS rational? A) a b + c d = ad + bc bd

Mademuasel [1]

Answer:

Step-by-step explanation:

So we need to understand what is rational numbers?

Rational number which can be written under this form: $\frac{x}{y}$ when x any are both integers and y $\neq 0$

The question here is : Which property would be useful in proving that the product of two rational numbers. In math, when we talk about the product of at least two number, it implies to the multiplication in the operation.

Here, only answer C: $\frac{a}{b} *\frac{c}{d} = \frac{ac}{bd}$ with the condition $b\neq 0 and d \neq 0$ and a, b, c and d are integers. Product of two integers is always an integer..