Math 8 Summative Test 4

Which is TRUE about a linear equation?

• It is an equation whose graph is a parabola.

• It is an equation having a polynomial of degree 1.

• It is an equation that has two solutions.

• It is an equation having a polynomial of degree 2.

What do you call the graph of a linear equation?

• line

• ellipse

• hyperbola

• parabola

The following can be used in graphing a linear equation EXCEPT:

• slope

• two points

• slope and a point

• 𝑥 and 𝑦- intercepts

Which of these linear equations represents the graph at the right?

• 𝑦 = 3𝑥 – 2

• 𝑦 = −3𝑥 – 2

• $𝑦=\frac{2}{3}𝑥+3$

• $𝑦=-\frac{2}{3}𝑥–3$

Which line passes through the points (1,3) and (−1,5)?

• 𝑦 = 𝑥 + 4

• 𝑦 = 𝑥 – 4

• 𝑦 = −𝑥 + 4

• 𝑦 = −𝑥 − 4

Which linear equations represent the graph on the right?

• $𝑦=-\frac{2}{3}𝑥+1$

• $𝑦=-\frac{3}{2}𝑥+1$

• $𝑦=2𝑥+1$

• $𝑦=𝑥+2$

Which among the choices is the abscissa of a point?

• 𝑥 – intercept

• 𝑥 – coordinate

• 𝑦 – intercept

• 𝑦 −coordinate

Which line passes through the points (−1, 0) and (0, −2)?

• 𝑦 = 2𝑥 + 2

• 𝑦 = −2𝑥 – 2

• 𝑦 = 2𝑥 – 2

• 𝑦 = −2𝑥 + 2

What is the 𝑥-intercept of the graph?

• −2

• −3

• $-\frac{2}{3}$

• $\frac{3}{2}$

What is the 𝑦-intercept of the graph?

• -3

• 3

• 2

• -2