So here's how to do it,
slope intercept form is y=mx+b
m is the slope, b is the y- intercept, X is your unknown variable.
you need to solve to get y by its self to get your slope.
for perpendicular lines flip the slope
ex 1, smy=2x+6 --- slope of a perpendicular line will be 1/2
ex 2, y=3/2+8 ---8 perpendicular lien would have a slope of 2/3
parallel lines have the same slope so any equation with with the same slope will be parallel if it has the same degree.
ex. y=2x+14 is parallel to y= 2x+56
slope can be found using the following formula if you have two sets of points on the same line
m= y2-y1 ÷ X2 - X1
Three equivalent ratios are: 8/6, 12/9, 16/12
Answer:
for what?
Step-by-step explanation:
Important: represent your unknowns. You might represent "number of adult tickets sold" by "a" and "number of student tickets sold" by "s."
How many tickets were sold, altogether? Express this sum algebraically, using "a" and "s."
How does the number of student tickets sold compare with the number of adult tickets sold? Express this algebraically in therms of "a" and "s."
