CCSS.Math.Content.HSF.BF.A.1

Jame's 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵
• 70(2)⁵
• 2(70)⁵
• 5(70)²

Tags

CCSS.Math.Content.HSF.BF.A.1

CCSS.Math.Content.HSF.LE.A.1

What is the vertex form for a vertex of (-3,-5) and when a=-2?

• y = -2(x-3)²+5
• y = -2(x+3)²+5
• y = -2(x+3)²-5

Tags

CCSS.Math.Content.HSF.BF.A.1

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.Math.Content.HSF.BF.A.1

A cup is filled with 100 ml of water. Every second, 2 ml of water are poured out of the cup.  Which function shows the amount of water in the cup after t seconds?

• w(t) = 100 + 2t
• w(t) = 100 - 2t

Tags

CCSS.Math.Content.HSF.BF.A.1

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x
• y=15x+80
• y=x+15
• y=80x+15

Tags

CCSS.Math.Content.HSF.BF.A.1

Write a linear function that has a slope of -2 and passes through the point (-3, 4).

• f(x) = -2x - 2

• f(x) = -2x + 4

• f(x) = =2x + 3

• f(x) = -2x + 2

Tags

CCSS.Math.Content.HSF.BF.A.1

The amount of cola in a soda machine decreases by a rate of 5% each hour. The amount of cola in the machine was originally 75 gallons.

Which function models the amount of cola in gallons after h hours?

• f(h) = 75(-5)^h

• f(h) = -5(75)^h

• f(h) = .95(75)^h

• f(h) = 75(.95)^h

Tags

CCSS.Math.Content.HSF.BF.A.1

CCSS.Math.Content.HSF.LE.A.1

Bob has $150 in his savings account and saves $40 per month. Which function models his savings?

• y = 150 + 40

• y = 40x + 150

• y = 150x + 40

Tags

CCSS.Math.Content.HSF.BF.A.1

A particular type of cell doubles in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells?

• n= 4(1/2)^h

• n= 4(2)^h

• n= 4+ (2)^h

• n= 4 + (1/2)^h

Tags

CCSS.Math.Content.HSF.BF.A.1

CCSS.Math.Content.HSF.LE.A.1

The population of carp is cut in half every day. The population starts out with 1500 carp.

• $y=1500\left(\frac{1}{2}\right)^x$

• $y=1500\left(2\right)^x$

• $y=1500\left(\frac{1}{2}\right)^{\frac{x}{2}}$

• $y=\frac{1}{2}\left(1500\right)^x$

Tags

CCSS.Math.Content.HSF.BF.A.1