Find my ex
Solve: x+12=7
x=-5
What is the slope in this equation:
y = -5/2x + 2
-5/2
This vocabulary term refers to the steepness of a line
slope OR gradient
Find the solution to the Simultaneous Equations:
y = x + 3
y = 2x - 2
(5,8)
Find an expression for the area of a floor of a rectangular room with the following side lengths:
x + 3
2x
2x2 + 6x
Solve: -9+x=12
x=21
What is the y intercept in this equation:
y = -2x + 3
3
This vocabulary term refers to the initial value, or starting point, of a linear equation
y-intercept
Determine if the following lines are parallel, perpendicular or neither:
y = -5x - 4
5y = 2x + 2
Neither.
(m1 = -5, m2 = 2/5 so not parallel, m1 x m2 = -2, so not perpendicular)
Write an equation for the following and solve for x:
5 less than x when doubled is -15
2(x-5) = -15
so x = -2.5
Solve: 40=-8x
x=-5
Find The Slope: (-2,-2),(4,-1)
1/6
This term refers to an equation whose graph makes a straight line
linear equation
Find a solution for the following simultaneous equations:
y = x + 5
3x + y = 13
(x , y) = (2, 7)
Substitute the following values to find a:
v = u + at where v = 6, u = 2, t = 4
a = 1
Solve: 19-4x=17
x=0.5
Find The Slope: (-8,-10) and (-7,0)
10
When an expression includes an = , it is called this.
An Equation.
Solve the pair of simultaneous equations:
x + y = 5
2x - y = 4
(x , y) = (3 , 2)
The perimeter of a square is 68cm. Determine its side length.
Length = 17cm
Solve: 3x-1=7x+2
x=-0.75
Find The Slope: (4,15) and (10,4)
-11/6
This vocabulary term refers to a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x).
Coefficient
Solve the following pair of simultaneous equations:
3x + 2y = 5
2x + 3y = 5
(x , y) = (1, 1)
The capacity of a petrol tank is 80L. If it initially contains 5L and a petrol pump fills it at 3L per 10 seconds, how long it will take to fill the tank to 32L.
1 minute 30 seconds OR 90 seconds