Answer:
its B :)
Step-by-step explanation:
y = −x2
one quadratic graph opening down and one quadratic graph opening up. They intersect at 1, negative 1 and negative 1, negative 1.
one quadratic graph opening up and one quadratic graph opening down. They intersect at 0, negative 3.
two quadratic graphs opening up. They intersect at 0, negative 3.
quadratic graph opening up and quadratic graph opening down. They intersect at 1, 2 and negative 1, 2
one quadratic graph opening down and one quadratic graph opening up. They intersect at 1, negative 1 and negative 1, negative 1
i.e. they intersect at (1,-1) and (-1,-1)
We are asked to find which graph correctly solves the system of quadratic equations:
and
on solving the equation by the method of substitution i.e. on equating both the equations we get:
Now on putting the value of x in any of the equations we get the value of y as:
Hence, the point of intersections of both the graph is:
(1,-1) and (-1,1).
Also the graph of the quadratic equation:
opens upward.
and graph of the quadratic equation:
opens downward.
4p + 2p
Answer:
Step-by-step explanation:
sólo se pueden sumar o restar los coeficientes de términos similares.
Hope I helped!
Best regards! :D
How many seconds did it take for the object to hit the ground?
How many seconds did it take for the object to reach 1000 feet
Answer:
time = 0 seconds
Time to hit ground = 7.906 seconds
time = 0 seconds
Step-by-step explanation:
t = 0
-16(0)^2 +1000 = 1000
Time for ball to reach ground:
-16t^2 +1000 = 0
-16t^2 = -1000
t^2 = -1000/-16
t = squareRoot (-1000/-16) = 7.906 seconds
Answer:
-2/5
Step-by-step explanation:
When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed). the line y = x is the point (y, x). the line y = -x is the point (-y, -x).