The maximum happens at x = -b/2a
x = -48/2(-16) = 3/2
Now replace x in the equation and solve for y:
y = 48(3/2) - 16(3/2)^2
y = -72 - 36
y = 36
The maximum height is 36 feet.
Answer:
x=-2
Step-by-step explanation:
Subtract 3 from both sides
-6x=15-3
Simplify 15 -3 to 12
-6x=12
divide both sides by -6
x= -12/6
Simplify 12/6 to 2
x=-2
30 yards per hour
240 minutes= 4 hours
360 feet= 120 yards
120 yards divided by 4 hours is 30
About less than 3 inches :)
Point t slope form:
y + y value = m (x + x value) where m is the gradient
Parallel line must have the same gradient as the two lines never meet, so the gradient must be 4. This eliminates option B and D.
Remember that point-slope form is still an equation, so the values of both sides must be equal. So let's substitute the given coordinates.
Option A:
y-6=4(x+2)
-6-6 (-12) does not equal to 4(-2+2) (0)
Option C:
y+6=4(-2+2)
-6+6 (0) = 4(-2+2) (0)
Therefore, option C is your answer.
