m3 finals review 1

What do you call an equation with a graph of straight line?

• linear equation

• quadratic equation

• function equation

• simultaneous equation

Find the y-coordinate from the equation y=5x, which have x=5.

• 15

• 10

• 25

• 20

Find the x-coordinate from the equation y=2x + 3, which have y=7.

• 4

• 3

• 2

• 1

Find the x-coordinate from the equation y=2x + 3, which have y=15.

• 8

• 7

• 6

• 5

What do you call to find the pair of x and y which will satisfy both equation?

• linear equation

• quadratic equation

• function equation

• simultaneous equation

What is used to eliminate one of the unknown by adding or subtracting the equation?

• equating expression

• substitution

• elimination

• none of the above

What method is used when both equations supposed to have equal value in terms of one unknown?

• equating expression

• substitution

• elimination

• none of the above

What is the value of x and y for the simultaneous equations x+y=3 and x-y=1

• x=2 , y=1

• x=(-2) , y=1

• x=2 , y=(-1)

• x=(-2) , y=(-1)

What is the value of x and y for the simultaneous equations y=3x -2 and y=2x+5

• x=7, y=19

• x=5, y=12

• x= 8, y=19

• x=5, y=12

What is the value of x and y for the simultaneous equations x+y=5 and x-y=5

• x=5, y=0

• x=0, y=5

• x=2, y=3

• x=3, y=2