linear relations
is y=-4/3x+1/2 linear
Yes
what is the slope formula?
m=y2-y1/ x2-x1
is the equation y=-5/3x+7 direct or partial variation?
partial variation
for every hour the price gets squared what is the equation and is it partial or direct variation
neither partial nor direct variation. and the equation is p=x2
determine the equation of a line passing through point (4,5) with a slope of negative 2.
y=-2x+13
if the degree if the equation is 1 then the equation is?
linear
what is the slope of a ramp that id 5 meters high and 12 meters long
m=5/12
determine the constant of variation for each equation. the distance travelled by the bus varies directly with time. the bus travels 240 km every three hours.
240/3= 80
80km/h
A graph is U shaped what type of variation is it.
Neither direct or partial variation
find the equation of a line parallel to the y axis, passing through (-3,-6)
undefined
this line has the x values of 0,1,2, and 3 and y values of 5,6,8, and 12. Is the line linear
no
if the x values are 1,2,3,4, and 5 and the y values are 5,10,15, and 20, graph the relation and find the slope
m=20
The following table shows time in minutes for one, five, ten, and 15, and for distance it shows in km .2, 1, 2, 3, and 4. What is the equation to this thing? what speed is the bike going at? How long will it take to ride 5 km?
equation: d=0.2t
speed:0.2km/h
time for 5km: 25 min
a medium pizza costs seven dollars plus 1.5 dollars per topping.
a)Identify the fixed cost and the variable cost.
b)determine the equation relating the cost, c, in dollars and the number of toppings, n.
c)Use the equation to determine the cost of a medium pizza with 10000 toppings.
a) fixed: 7d variable cost: 1.5/topping
b) c=7+1.5n
c) 1507
the line is y=4/3x+6 what is a line opposite to this.
y=-3/4x+64289579
insert names rate of pay is 9.50 dollars per hour. If you made a table of values for Jacob's earnings, is it linear?
yes
calculate the slope if a line that passes through (1,5) and (6,2)
m=-3/5
at a bulk store, .5 kg of sugar costs 1.29 dollars. explain why this relationship is considered a direct variation.
because of you buy 0kg of sugar the cost is zero. for every .5kg of sugar you add 1.29 dollars thus it's proportionate.
A line goes through the origin what type of variation is it.
opposite line of 5/6
-6/5
a pattern made from toothpick as shown diagram one has four toothpicks, diagram two has seven toothpicks and diagram three has 10 toothpicks. Find out if this pattern has a linear relation and write an equation for the relation.
the line is linear, the equation is t=3d+1
a pyramid is 140cm tall and has a width of 230 meters. how does its slope compare to that of a staircase with a slope of 0.7
140/230= 0.6
the slope is .1 smaller than .7
the freezing point of water varies directly with the salt content of the water fresh water freezes at a temperature of 0c. Ocean water has a slat content of 3.5% and freezes at -2c. what is the independent variable and dependent variable?
the amount of salt in the water is the independent variable and the dependant variable is the temperature that it freezes at.
A line has a Y intercept of -3 on wha type of variation is it?
Partial variation
opposite line to 9/2
-2/9