Determine if this equation is partial or direct variation.
y=13x
Direct
100
Find the slope and y-intercept of y=3x+9
slope=3
y-intercept=9
100
The length of a rectangle is 9cm. The width is 3 cm. What is the perimeter?
3x2+9x2=24cm
200
-15x+6=-16x
x=-6
200
Determine the dependent and independent variablefrom the following sentence.
A car travels at a speed of 100km per hour.
km depends on hours.
200
Convert the equation from standard form to y intercept form.
4x+1y+9=0
y=4x+9
200
The length of a rectangle is 9cm, The width is 3cm.What is the area of the rectangle?
LxW=area
9x3=27cm²
300
-4(x+6)+3(x+3)=22
x=-55
300
A supermarket is having advertisement flyers printed, All together the cost is $400 plus $0.20 per flyer. write an equation representing this relationship.
y=0.20x+400
300
Find the x and y intercept of the line. 4x+3y=12
x=3
y=4
300
The base of a triangle is 4cm. The height is 5cm. What is the area of the trangle?
Area=BxH÷2
Area=4x5÷2
Area=10cm²
400
Julie is 5 years older than her sister Sam. The sum of their ages is 45. How old are the sisters
x+x+5=45
2x=40
x=20+5
ages
20
25
400
The price to repair a car is $100 plus $35/hour. What is the total cost of a repair that takes 4.5 hours?
y=35x+100
=35(4.5)+100
=157.5+100
=257.5
400
Sam draws a line that passes through (-3,4) and (2,9). What are the values of m and b?
m=-3
b =7
400
The diameter of a cylinder 6cm, The height is 10cm. What is the surface area of the cylinder?