I need help with 15 a
1 answer:
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Answer:
y = - 6x - 2
Step-by-step explanation:
The straight line equation is y = mx + c
First step is to bring the equation given to this form, where you make y the subject.
Now you can easily note down the gradient(m1). You will need it to find the gradient(m2) of the perpendicular line, because m1 × m2 = -1
After you have that substitute the value and the values of x and y given to find c .
Lastly, substitute the value of m2 and c into y = mx + c to find the line that is perpendicular .
Hope I was able to help:)))
Answer:
If a number is prime, it may or may not be odd.
Step-by-step explanation:
The prime numbers are all natural numbers greater than 1, which are only divisible between themselves and between 1. For example: 2, 3, 5, 7, 11 ...
A Venn diagram is shown in the attached figure
There you can see that not all even numbers are primes for example, 4 is an even number, but it is not a prime number. Then, not all odd numbers are prime numbers, for example 9 is an odd number, but it is not a prime number.
Neither all prime numbers are odd, for example the number 2 is a prime number and it is not odd.
Notice in the attached Venn diagram that the set of prime numbers contains even numbers and also odd numbers.
Therefore, the correct statement is the last option:
If a number is prime, it may or may not be odd.
