The equations is : y=-1/4x -6
The line intercepts the y axis at -6 and from there it is one down and 4 to the right.
This is an examination to test your level of skill. By asking this quesiton to others, you do not show your true level and maybe be placed in a higher math than you are able.
factor
remember
if ab=0
assume that a and/or b=0
p^2+13p-30=0
fidn what 2 numbers add to 13 and multiply to -30
15 and -2
(p+15)(p-2)=0
set each to zero
p+15=0
p=-15
p-2=0
p=2
the roots are p=-15 and/or 2
If you would like to know how many yards are in 65 miles, you can calculate this using the following step:
To convert 65 miles to yards, you have to multiply 65 by 1760, because 1 mile equals to 1760 yards: 65 * 1760 = 114400 yards.
Result: 65 miles equals to 114400 yards.
#4
Examine the relationship between y and x, waiting until later to examine the y-intercept. For example: If we look at B, and mult. x = 2 by 0.55, we get 1.10, which is not even close to the y = 6.5 given in the table. If, however, we mult. 2 by 3.55, we get 7.10, which is not the same as the y = 6.5 given in the table, but is much closer than 1.10.
Also note that all y values in the table are positive, so a negative slope would be inappropriate. That eliminates choices A and D.
Focus now on the remaining choices B and C. Again, let x= 2 and determine the associated y value. Which y value is closer to the table's 6.5?
B: 0.55(2) + 3.55 = 4.65 (relatively far away from the table's 6.5)
C: 3.55(2) - 0.55 = 6.55 (very close to the table's 6.5)
C is the correct answer.
