Question

Find the equation of the line shown.

Answer 1

Answer:

y= -2x+9

Step-by-step explanation:

The equation will be written this way :

y= m*x+c

• m is the slope
• c is a constant
• m =( f(4)-f(2))/(4-2)=(1-5)/2= -4/2 = -2
• y = -2x+c
• replace x and y by the coordinates of a point to get c
• 1= -2*4+c
• c = 9

y = -2x+9

Answer 2

Answer:

y=-9/4.5+9

Step-by-step explanation:

To find the equation you do y=mx+b which means y= slope + y-intercept.

To get the slop you do rise over run which in this situation is 9/4.5. And the y-intercept is when the line touches the y-axis and in this problem it is 9. So the answer is y=-9/4.5+9