What is the y-intercept of the line connecting (1,5) and (4,14)?

1 answer:

7 0

The answer is C. b=2.
I found the answer by first finding the slope. To find the slope i found the difference of the y values and divided that by the difference of the x values.
14-5/4-1
This simplifies down to:
9/3 which equals 3.
I then plugged this into the slope intercept form: y=mx+b to get y=3x+b
The next step would be to plug in the values of one of the points to solve for b. The point I choose was (1,5). By plugging this point into the equation i got 5=3(1)+b which simplifies to 5=3+b which means that b=2

You might be interested in

I need to multi-step function inverse, photo included

STALIN [3.7K]

Answer:

$f^{-1} = (9x + 1)^{7}$

Step-by-step explanation:

$y\:=\:\frac{x^{\frac{1}{7}}-1}{9}$

replace x with y:

$x=\frac{y^{\frac{1}{7}}-1}{9}$

solve for y:

$9x=y^{\frac{1}{7}}-1}$

$9x + 1 = y^{\frac{1}{7} }$

$y = (9x + 1)^{7}$

therefore:

$f^{-1} = (9x + 1)^{7}$

4 0

2 years ago

A group of people gathered to watch a baseball game. While talking, they realized that 12 of

rodikova [14]

Answer:

P(Boston Red Sox) = 2/5

Step-by-step explanation:

The probability that the favorite team of a randomly selected baseball fan is the Boston Red Sox can be found by dividing the number of Boston Red Sox fans by the total number of fans.

It's given that there are 12 Boston Red Sox fans and 18 other fans. Therefore the total number of fans is 12 + 18 = 30.

If we divide the number of Boston Red Sox fans by the total number of fans, we get 12/30 = 2/5. Finally, we have P(Boston Red Sox) = 2/5.

4 0

2 years ago

X^7+5x+9 what is f(-1) for the polynomial

mars1129 [50]

Answer: $x=-3$