x-intercept #1
What are the x-intercepts of y=4x2 - 16?
4 and -4
What are the x-intercepts of y = 2x2?
x = 0
What is the vertex of the following function? y=(x-4)2+5?
(4, 5)
What is the vertex of the following function? y = -4(x-8)2+10
(8, 10)
The height of a baseball in feet, t seconds after it
is thrown from the stands down to the field, is
modeled by the function h(t) = −16t2 + 48t + 64.
When will the ball be at its maximum height?
1.5 seconds
What are the x-intercepts of y = x2+12x+36?
-6
What are the x-intercepts of y = 2x2 - 14x - 36?
x = 9 x = -2
What is the vertex of the following function? y=(x+9)2?
(-9, 0)
What is the vertex of the following function? y = 3x2-6x+13
(1, 10)
The height of a baseball in feet, t seconds after it
is thrown from the stands down to the field, is
modeled by the function h(t) = −16t2 + 48t + 64.
What will the ball be at its maximum height?
100 feet
What are the x-intercepts of y = 5(x -2)2 + 50?
no solution
What are the x-intercepts of y=8x3 - 2x2+28x - 7?
2x2(4x-1)7(4x-1)
x= 1/4
What is the vertex of the following function? y=2x2 + 8x - 1?
(-2, -9)
Convert to vertex form y = x2+10x-8.
The height of a baseball in feet, t seconds after it
is thrown from the stands down to the field, is
modeled by the function h(t) = −16t2 + 48t + 64.
When will the ball hit the ground?
1 second
What are the x-intercepts of y = 3(x+7)2 - 27?
x = -4 and x = -10
What are the x-intercepts of y = -3(x+1)2+15?
x = +/- sqrt(5) - 1
What is the vertex of the following function? y=(x+7)(x-5)?
(-1, -36)
Convert the following to vertex form. y = -x2+6x-10
y = -(x - 3)2-1
As seen in the diagram below, Jonah is building a walkway with a width of 𝑥 feet to go around a swimming pool that measures 11 feet by 9 feet. If the total area of the pool and the walkway will be 575 square feet, how wide should the walkway be?
7 feet
What are the x-intercepts of y = 4x2 - 5x - 6?
x = 2 and x = -3/4
What are the x-intercepts of y = 4x - 8x + 1?
x = 1.87 and x = 0.13
What is the vertex of the following function? y = 2x2 - 3x+1
(3/4, -1/8)
Convert to vertex form. y = 2x2+5x+2
y = 2(x+5/4)2- 9/8
The length of a rectangular poster is 4 more inches than three times its width. The area of the poster is 340 square inches. Solve for the dimensions (length and width) of the poster.
10 x 34