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Answer 1

15)

Observe the graph,

The line passing through the points are

Find the linear equation.

The line equation is

Substitute

Graph of the equation is

True.

Answer 2

17)

Observe the graph,

The graph is vertical parabola and open upwards.

At y-axis touches at 1 and 4 units.

The graph is passing through the point at origin.

General form of the verical parabola equation is

The parent function is

True.

Answer 3

18)

Step 1:

Observe the graph,

The graph is vertical parabola and open upwards.

The graph is passing through the point at origin.

Consider the graph the points are

General form of the vertical parabola equation is

Substitute

The graph function is

The parent function by  multiple factor of

Solution:

Option 1 is correct answer.

Answer 4

26)

The equation is

Solve the equation and find roots.

True.