Well since we know the roots are x = 5 and x = -1/4. We can convert it into an equation and make it equal to 0.
Simply work backwards instead of solving for x. For x = 5, it would be x - 5 = 0, because if you solve for x it will be 5.
Same thing for x = -1/4, the equation would be x + 1/4 = 0.
(X-5)(x+1/4) = 0.
Now multiply the 2 binomials together to get the quadratic. To get rid of the fraction after obtaining the quadratic multiply by 4 for each term in the quadratic.
Answer:
<u>y = 6x + 11</u>
Step-by-step explanation:
The slope-intercept form ⇒ y = mx + c
Where m is the slope and c is y-intercept
So, we need to change point-slope form to slope-intercept form
The given equation: y - 5 = 6 (x+1)
∴ y - 5 = 6x + 6 add 5 to each side of the equation
∴ y = 6x + 6 + 5
∴ y = 6x + 11
So, the equation written in slope-intercept form is <u>y = 6x + 11</u>
Let t represent the # of hours required for the west-east flight.
Then (540 mph)(t) = 2700 miles, and t = 5 hours. Flying east-west should take 1 hour less, or 4 hours.
This east-west speed would be 2700 miles / 4 hours = 675 mph (answer)
55,000,000 is the answer :D