Quick Questions

Which formula is correct?

For the line: y=4x+3, state what the gradient is...

(a)  

Solve for x: $$x^2+3x-4=0$$  

Find the equation of the line which passes through the points (-2, 3) and (5, -4)

(a)  

If the product of two gradients equals -1, the two lines are perpedicular

Expand the following: $$\left(x+3\right)\left(x+3\right)$$  

Select the equation that's in slope intercept form:

Solve the following simultaneous equation using substitution

  $$x+2y=5$$   

$$y=x+1$$  

(a)  

Order the following steps for solving word problems

Is the line $$y=7x+2$$  parallel to the line $$7x-y+12\ =0$$ ?