nancisundeed nancisundeed

19-12-2020
Mathematics

contestada

F(x)=ax^2+bx-2
Calculate a and b such that
F (I) = 5 and F (-2)=20

Respuesta :

melikaz melikaz

19-12-2020

a=6 , b=1

If F(1)=5 then we have 5= a + b -2
If F(-2)=20 then 22= 4a -2b
If we simplify the second one : 11=2a -b
Then by adding these two we have 3a=18, so a=6 and b=1

Answer Link

Otras preguntas

Which equation represents a direct linear variation?

At noon on a clear day, sunlight reaches the earth\'s surface at Madison, Wisconsin, with an average intensity of approximately 2.00 kJ·s–1·m–2. If the sunlight

Janeen wants to use the distributive property to find the value of 14⋅26+14⋅53. Which expression can she use?

Question 3 (Fill-In-The-Blank Worth 2 points) Fill in the blank with the correct conjugation of the verb in parentheses. ¿Por qué __________ Juan Miguel (ha

40 pointssssssssssssssssssssssssssssssssssss

When you take out a mortgage your home becomes the collateral true or false?

How do you think Europe might have changed after the decline of the western Roman Empire

Sixteen degrees Celsius is warmer than zero degrees Celsius.

which best identifies an individual who initially refuses to share a table with Anne plz help

Radio signals travel at a rate of 3 × 108 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of the E