CCSS.Math.Content.HSA.REI.B.4

What  are the solutions of this graph?

• -2 and 3
• -1/2 and -6
• -2 and -6
• 3 and -6

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve using square roots.
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.Math.Content.HSA.REI.B.4

Does this parabola have a maximum or minimum?

• maximum
• minimum

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor
3v² - 4v - 7

• (3v-7)(v+1)
• 3(v-7)(v-1)
• (3v+1)(v-9)
• (3v+1)(v-10)

Tags

CCSS.Math.Content.HSA.REI.B.4

Identify the vertex

• (-1,-9)
• (0,-8)
• (-4,0)
• (0,0)

Tags

CCSS.Math.Content.HSA.REI.B.4

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.Math.Content.HSA.REI.B.4

Factor x²-6x+8

• (x-4)(x-2)
• (x+4)(x+2)
• (x-4)(x+2)
• (x+4)(x-2)

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by taking square roots:
3 + 9r² = 12

• r = 0
• no solution
• r = 3, r = -3
• r = 1, r = -1

Tags

CCSS.Math.Content.HSA.REI.B.4

A ball was launched into the air with an initial upward velocity of 100 ft/s. The ball was 5 ft off of the ground when it was launched.The equation for the ball is h(t)= -16t²+100t+5, approximately what is the maximum height?

• 3 feet

• 100 feet

• 161 feet

• 5 feet

Tags

CCSS.Math.Content.HSA.REI.B.4

What are the roots of the function?

• x = 4, -1

• (-4, 1)

• x = -4, 1

• (4, 0) (-1, 0)

Tags

CCSS.Math.Content.HSA.REI.B.4