Question

Vivian is at a fair in Coachella Valley, California. Much of the valley lies below sea level. Vivian has brought along an altimeter to measure her elevation at different places in the valley. Vivian's first ride was on the Ferris wheel. When she sat on the wheel at its lowest point, her altimeter read -9.6 feet. When she reached the top of the wheel, her altimeter read 12.3 feet.Part B Write an expression to represent vivian's change in elevation from -9.6 feet at the bottom of the ferris wheel 12.3 feet at the top.

Answer 1

Rahila, this is the solution:

Altitude at the lowest point of the wheel : -9.6 feet

Altitude at the top of the wheel : 12.3 feet

Therefore, the expression that represents Vivian's change in elevation is:

• 12.3 - (-9.6) =

,

• 12.3 + 9.6 =

,

• 21.9 feet is the change in elevation