Solution for the question - find the slope of the given line. (-1)/(2) '/> (1)/(2) '/>-22

Mathematics

Grade9

Easy

Question

Find the slope of the given line.

2
-2
$\frac{1}{2}$
$\frac{- 1}{2}$

hint Hint:

To find the slope of a line when co-ordiante are given than we will use the formula $fraction numerator y subscript 2 minus y subscript 1 over denominator x subscript 2 minus x subscript 1 end fraction$ , ( $x subscript 1 comma y subscript 1$ ) are the coordinates of first point and ( $x subscript 2 comma y subscript 2$ ) are the coordinates of second.

The correct answer is: $fraction numerator negative 1 over denominator 2 end fraction$

A(-5,2),B(-1,0)
$S l o p e space a space l i n e space equals fraction numerator y subscript 2 minus y subscript 1 over denominator x subscript 2 minus x subscript 1 end fraction space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 0 minus 2 over denominator negative 1 minus left parenthesis negative 5 right parenthesis end fraction space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator negative 2 over denominator 4 end fraction space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator negative 1 over denominator 2 end fraction$

The measure of $angle A B C$ is ______.

MathematicsGrade9

Grade9

Mathematics

If l || m then find the measures of x and y?

In this question we have to find x and y given that l is parallel to m and t is the transversal. First to find x we can use linear pair as we know that the sum of angles which are in linear pair is 180 deg. Next to find y we can use the theorem alternate exterior angles are equal.