PowerAlgebra.com Se l e c t e d A n sw e r s
No; all points are not on a straight line.
r
Gas
Used, x
Distance,
y
[ 0 40 )
! (^190) j
[ 2 140 j
3 190 j
b. No; you can always multiply a number by j. The
denominator of the fraction will get larger and larger, so
the value of the fraction will approach 0 but never reach it.
- The number of branches is 3 raised to the xth power;
y=3x; 81, 243. - Start with -3 and add 5
for each increase of 1 forx;
y = 5x - 3.
Gas (gal )
Either distance or gas could be the independent
variable, depending on what information is supplied
and what is to be calculated.
- graph of a line that goes through (0, 0); (1, 6), (2, 12);
the horizontal axis is labeled Distance and the vertical axis
is labeled Time.
Lesson 4-3 pp. 246-251 - y = 3 x -2 3. C 4a. linear function b. nonlinear
function 5. Only the first two pairs fit this rule. The rule
that fits all the pairs is y = x2 + 1.
Exercises
nonlinear nonlinear
Got It?
1a. nonlinear
- y = x 2
Lesson Check
linear
- Yes; for each additional
hour of climbing, you
gain 92 ft of elevation;
y = 92x + 1 127.
y = 50x -
^ 150
£ 100
linear
- Yes; for every 17 mi traveled,
the amount of gas in your
tank goes down by 1 gallon;
y= ~jjx+ 11.2.
17 34 51