Question 25 4 pts
Solve the following system word problem.
26.
Ashley and Jessica each improved their yards by planting daylilies and ornamental grass.
They bought their supplies from the same store. Ashley spent $132.00 on 9 daylilies and 7
bunches of ornamental grass. Jessica spent $216.00 on 12 daylilies and 16 bunches of
ornamental grass.
The price of each daylily is
DO NOT put a '$ in front of your answer.
The price of each bunch of ornamental grass is
DO NOT put a $ in

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)