What is the area of triangle pqr on the grid? a. 5 square units
b.6 square units
c.10 square units
d.12 square units

The correct option is B.

Step-by-step explanation:

The area of a triangle is

where, b is base of the triangle and h is height of the triangle.

From the given figure it is clear that the base of the triangle is PR = 4 units and the height of the triangle is perpendicular distance of side PR from vertex Q, i.e., 3 units.

Substitute b=4 and h=3 in the above formula, to find the area of triangle PQR.

On simplification we get.

The area of triangle PQR is 6 square units. Therefore the correct option is B.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm