Answer:
f(x) = 3x + 2
Step-by-step explanation:
That's easy to find out. You have your input number, which is your x value, and you have your output number which is your y value (or f(x)).
All you have to do is see if each of the proposed answer works for ALL entries in the data set.
f(x) = 3x + 2
for x = 3 ===> 11 = 3 (3) + 2 = 11 YES
for x = 5 ===> 17 = 3 (5) + 2 = 17 YES
for x = 7 ===> 23 = 3 (7) + 2 = 23 YES
for x = 9 ===> 29 = 3 (9) + 2 = 29 YES
f(x) = 2x + 5
for x = 3 ===> 11 = 2 (3) + 5 = 11 YES
for x = 5 ===> 17 = 2 (5) + 5 = 15 NO - we stop here for this function
f(x) = x + 7
for x = 3 ===> 11 = (3) + 7 = 10 NO - we stop here for this function
f(x) = 3x + 1
for x = 3 ===> 11 = 3 (3) + 1 = 10 NO - we stop here for this function
"raise at least $140" tells you that, whatever the variables may be, the french club's profit needs to be 140 or more
they're selling pastries at $3.50 each, so we'll say that p is the number of pastries
140 >/= 3.50p
$140 must be greater than or equal to the profit from sold pastries
then just solve the inequality from there by isolating your variable:
140 >/= 3.50p
divide both sides by 3.50
40 >/= p
so they must sell at least 40 pastries to raise $140 dollars
The answer is D) Marty gets ten dollars for his allowance and then spends ten dollars at the movies
because $10-$10=0
The equation you’re using here would be:
1300(1.04)^x.
After 3 years, you’d plug in 3 for the value of x.
The amount of money in the bank after 3 years would be $1,462.32.
In a rectangular form of a complex number, where a + bi, a and b equates to the location of the x and y respectively in a complex plane. The modulus |z| is the term used to describe the distance of a complex number from the origin. Hence, |z| = √(a²+b²)
