PL HEL QUIZZ REWARD BRAINLIESTTT Question 1 (1 point)

Which is a linear function?
Question 1 options:

y=−2.3x2+15

y=−2.3x+15

y=−2.3x+15

y=−2.3x3+15

Question 2 (1 point)

Determine the type of function that models the scenario.

The investment earns compounding interest monthly at a rate of 8%.
Question 2 options:

Linear

Quadratic

Exponential

None of these
Question 3 (1 point)

Determine the type of function that models the scenario.

The number of of bacteria cultures doubles every hour.
Question 3 options:

Linear

Quadratic

Exponential

None of these
Question 4 (1 point)

Determine the type of function that models the scenario.

The tree grows 5 inches every year.
Question 4 options:

Linear

Quadratic

Exponential

None of these
Question 5 (1 point)

Which situation can be represented by a quadratic function?
Question 5 options:

The cost of violin lessons at a twice-a-week rate

The value of a tractor depreciates 15% every year

The time it takes a firework to reach its maximum height

The height of a tree doubles every two years

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be

both graphs increase on their domain

neither graph has a y-intercept

step-by-step explanation:

the following points can be visualized easily from the graph

answer: 7

step-by-step explanation: